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Finding the Fourth Proportional to 632,391.72, 872,678.67 and 360,547.17

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Solution

The fourth proportional to 632,391.72, 872,678.67 and 360,547.17 is: 497,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,391.72 : 872,678.67 = 360,547.17 : x
  2. Step 2: Convert to fraction form
    632,391.72/872,678.67 = 360,547.17/x
  3. Step 3: Cross multiply
    632,391.72x = 872,678.67 × 360,547.17
  4. Step 4: Simplify right side
    632,391.72x = 314,641,824,787.86
  5. Step 5: Solve for x
    x = 314,641,824,787.86/632,391.72
  6. Step 6: Final answer
    x = 497,542.61

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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.