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Finding the Fourth Proportional to 547,612.28, 755,421.90 and 346,524.92

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Solution

The fourth proportional to 547,612.28, 755,421.90 and 346,524.92 is: 478,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,612.28 : 755,421.90 = 346,524.92 : x
  2. Step 2: Convert to fraction form
    547,612.28/755,421.90 = 346,524.92/x
  3. Step 3: Cross multiply
    547,612.28x = 755,421.90 × 346,524.92
  4. Step 4: Simplify right side
    547,612.28x = 261,772,513,463.75
  5. Step 5: Solve for x
    x = 261,772,513,463.75/547,612.28
  6. Step 6: Final answer
    x = 478,025.28

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Similar ratio
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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.