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Finding the Fourth Proportional to 656,585.40, 984,878.10 and 577,853.40

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Solution

The fourth proportional to 656,585.40, 984,878.10 and 577,853.40 is: 866,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,585.40 : 984,878.10 = 577,853.40 : x
  2. Step 2: Convert to fraction form
    656,585.40/984,878.10 = 577,853.40/x
  3. Step 3: Cross multiply
    656,585.40x = 984,878.10 × 577,853.40
  4. Step 4: Simplify right side
    656,585.40x = 569,115,158,670.54
  5. Step 5: Solve for x
    x = 569,115,158,670.54/656,585.40
  6. Step 6: Final answer
    x = 866,780.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.