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Finding the Fourth Proportional to 688,688.64, 950,503.12 and 573,785.06

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Solution

The fourth proportional to 688,688.64, 950,503.12 and 573,785.06 is: 791,917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,688.64 : 950,503.12 = 573,785.06 : x
  2. Step 2: Convert to fraction form
    688,688.64/950,503.12 = 573,785.06/x
  3. Step 3: Cross multiply
    688,688.64x = 950,503.12 × 573,785.06
  4. Step 4: Simplify right side
    688,688.64x = 545,384,489,739.39
  5. Step 5: Solve for x
    x = 545,384,489,739.39/688,688.64
  6. Step 6: Final answer
    x = 791,917.36

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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.