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Finding the Fourth Proportional to 411,065.66, 567,113.12 and 249,861.90

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Solution

The fourth proportional to 411,065.66, 567,113.12 and 249,861.90 is: 344,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,065.66 : 567,113.12 = 249,861.90 : x
  2. Step 2: Convert to fraction form
    411,065.66/567,113.12 = 249,861.90/x
  3. Step 3: Cross multiply
    411,065.66x = 567,113.12 × 249,861.90
  4. Step 4: Simplify right side
    411,065.66x = 141,699,961,678.13
  5. Step 5: Solve for x
    x = 141,699,961,678.13/411,065.66
  6. Step 6: Final answer
    x = 344,713.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.