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Finding the Fourth Proportional to 922,102.65, 1,272,507.20 and 514,230.27

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Solution

The fourth proportional to 922,102.65, 1,272,507.20 and 514,230.27 is: 709,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,102.65 : 1,272,507.20 = 514,230.27 : x
  2. Step 2: Convert to fraction form
    922,102.65/1,272,507.20 = 514,230.27/x
  3. Step 3: Cross multiply
    922,102.65x = 1,272,507.20 × 514,230.27
  4. Step 4: Simplify right side
    922,102.65x = 654,361,721,032.94
  5. Step 5: Solve for x
    x = 654,361,721,032.94/922,102.65
  6. Step 6: Final answer
    x = 709,640.86

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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.