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Finding the Fourth Proportional to 554,042.94, 765,209.89 and 372,439.92

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Solution

The fourth proportional to 554,042.94, 765,209.89 and 372,439.92 is: 514,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,042.94 : 765,209.89 = 372,439.92 : x
  2. Step 2: Convert to fraction form
    554,042.94/765,209.89 = 372,439.92/x
  3. Step 3: Cross multiply
    554,042.94x = 765,209.89 × 372,439.92
  4. Step 4: Simplify right side
    554,042.94x = 284,994,711,454.92
  5. Step 5: Solve for x
    x = 284,994,711,454.92/554,042.94
  6. Step 6: Final answer
    x = 514,391.02

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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.