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Finding the Fourth Proportional to 564,797.80, 847,196.70 and 486,065.80

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Solution

The fourth proportional to 564,797.80, 847,196.70 and 486,065.80 is: 729,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,797.80 : 847,196.70 = 486,065.80 : x
  2. Step 2: Convert to fraction form
    564,797.80/847,196.70 = 486,065.80/x
  3. Step 3: Cross multiply
    564,797.80x = 847,196.70 × 486,065.80
  4. Step 4: Simplify right side
    564,797.80x = 411,793,341,742.86
  5. Step 5: Solve for x
    x = 411,793,341,742.86/564,797.80
  6. Step 6: Final answer
    x = 729,098.70

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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.