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Finding the Fourth Proportional to 1,130,999, 1,696,138.53 and 372,698.96

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Solution

The fourth proportional to 1,130,999, 1,696,138.53 and 372,698.96 is: 558,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,999 : 1,696,138.53 = 372,698.96 : x
  2. Step 2: Convert to fraction form
    1,130,999/1,696,138.53 = 372,698.96/x
  3. Step 3: Cross multiply
    1,130,999x = 1,696,138.53 × 372,698.96
  4. Step 4: Simplify right side
    1,130,999x = 632,149,066,146.93
  5. Step 5: Solve for x
    x = 632,149,066,146.93/1,130,999
  6. Step 6: Final answer
    x = 558,929.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.