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Finding the Fourth Proportional to 547,337.79, 755,847.86 and 517,518.45

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Solution

The fourth proportional to 547,337.79, 755,847.86 and 517,518.45 is: 714,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,337.79 : 755,847.86 = 517,518.45 : x
  2. Step 2: Convert to fraction form
    547,337.79/755,847.86 = 517,518.45/x
  3. Step 3: Cross multiply
    547,337.79x = 755,847.86 × 517,518.45
  4. Step 4: Simplify right side
    547,337.79x = 391,165,210,355.43
  5. Step 5: Solve for x
    x = 391,165,210,355.43/547,337.79
  6. Step 6: Final answer
    x = 714,668.74

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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.