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Finding the Fourth Proportional to 605,854.60, 908,781.90 and 558,615.40

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Solution

The fourth proportional to 605,854.60, 908,781.90 and 558,615.40 is: 837,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,854.60 : 908,781.90 = 558,615.40 : x
  2. Step 2: Convert to fraction form
    605,854.60/908,781.90 = 558,615.40/x
  3. Step 3: Cross multiply
    605,854.60x = 908,781.90 × 558,615.40
  4. Step 4: Simplify right side
    605,854.60x = 507,659,564,581.26
  5. Step 5: Solve for x
    x = 507,659,564,581.26/605,854.60
  6. Step 6: Final answer
    x = 837,923.10

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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.