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Finding the Fourth Proportional to 562,077.15, 775,684.94 and 307,428.35

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Solution

The fourth proportional to 562,077.15, 775,684.94 and 307,428.35 is: 424,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,077.15 : 775,684.94 = 307,428.35 : x
  2. Step 2: Convert to fraction form
    562,077.15/775,684.94 = 307,428.35/x
  3. Step 3: Cross multiply
    562,077.15x = 775,684.94 × 307,428.35
  4. Step 4: Simplify right side
    562,077.15x = 238,467,535,808.48
  5. Step 5: Solve for x
    x = 238,467,535,808.48/562,077.15
  6. Step 6: Final answer
    x = 424,261.22

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1.5x scale

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.