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Finding the Fourth Proportional to 558,310.60, 837,465.90 and 471,705.40

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Solution

The fourth proportional to 558,310.60, 837,465.90 and 471,705.40 is: 707,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,310.60 : 837,465.90 = 471,705.40 : x
  2. Step 2: Convert to fraction form
    558,310.60/837,465.90 = 471,705.40/x
  3. Step 3: Cross multiply
    558,310.60x = 837,465.90 × 471,705.40
  4. Step 4: Simplify right side
    558,310.60x = 395,037,187,345.86
  5. Step 5: Solve for x
    x = 395,037,187,345.86/558,310.60
  6. Step 6: Final answer
    x = 707,558.10

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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.