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Finding the Fourth Proportional to 526,545.60, 789,818.40 and 518,672.40

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Solution

The fourth proportional to 526,545.60, 789,818.40 and 518,672.40 is: 778,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,545.60 : 789,818.40 = 518,672.40 : x
  2. Step 2: Convert to fraction form
    526,545.60/789,818.40 = 518,672.40/x
  3. Step 3: Cross multiply
    526,545.60x = 789,818.40 × 518,672.40
  4. Step 4: Simplify right side
    526,545.60x = 409,657,005,092.16
  5. Step 5: Solve for x
    x = 409,657,005,092.16/526,545.60
  6. Step 6: Final answer
    x = 778,008.60

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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.