Home / 712,407,133,350.90-983,122,477,516.80-387,246,425,163.78

Finding the Fourth Proportional to 712,407,133,350.90, 983,122,477,516.80 and 387,246,425,163.78

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Solution

The fourth proportional to 712,407,133,350.90, 983,122,477,516.80 and 387,246,425,163.78 is: 534,400,411,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,407,133,350.90 : 983,122,477,516.80 = 387,246,425,163.78 : x
  2. Step 2: Convert to fraction form
    712,407,133,350.90/983,122,477,516.80 = 387,246,425,163.78/x
  3. Step 3: Cross multiply
    712,407,133,350.90x = 983,122,477,516.80 × 387,246,425,163.78
  4. Step 4: Simplify right side
    712,407,133,350.90x = 380,710,664,916,539,516,387,328
  5. Step 5: Solve for x
    x = 380,710,664,916,539,516,387,328/712,407,133,350.90
  6. Step 6: Final answer
    x = 534,400,411,076.48

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.