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Finding the Fourth Proportional to 688,689.14, 950,503.81 and 573,785.56

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Solution

The fourth proportional to 688,689.14, 950,503.81 and 573,785.56 is: 791,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,689.14 : 950,503.81 = 573,785.56 : x
  2. Step 2: Convert to fraction form
    688,689.14/950,503.81 = 573,785.56/x
  3. Step 3: Cross multiply
    688,689.14x = 950,503.81 × 573,785.56
  4. Step 4: Simplify right side
    688,689.14x = 545,385,360,902.98
  5. Step 5: Solve for x
    x = 545,385,360,902.98/688,689.14
  6. Step 6: Final answer
    x = 791,918.05

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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.