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Finding the Fourth Proportional to 605,087.60, 907,631.40 and 577,531.40

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Solution

The fourth proportional to 605,087.60, 907,631.40 and 577,531.40 is: 866,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.60 : 907,631.40 = 577,531.40 : x
  2. Step 2: Convert to fraction form
    605,087.60/907,631.40 = 577,531.40/x
  3. Step 3: Cross multiply
    605,087.60x = 907,631.40 × 577,531.40
  4. Step 4: Simplify right side
    605,087.60x = 524,185,633,125.96
  5. Step 5: Solve for x
    x = 524,185,633,125.96/605,087.60
  6. Step 6: Final answer
    x = 866,297.10

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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.