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Finding the Fourth Proportional to 657,842.45, 987,109.47 and 466,948.79

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Solution

The fourth proportional to 657,842.45, 987,109.47 and 466,948.79 is: 700,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,842.45 : 987,109.47 = 466,948.79 : x
  2. Step 2: Convert to fraction form
    657,842.45/987,109.47 = 466,948.79/x
  3. Step 3: Cross multiply
    657,842.45x = 987,109.47 × 466,948.79
  4. Step 4: Simplify right side
    657,842.45x = 460,929,572,614.04
  5. Step 5: Solve for x
    x = 460,929,572,614.04/657,842.45
  6. Step 6: Final answer
    x = 700,668.64

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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.