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Finding the Fourth Proportional to 576,417.55, 864,624.49 and 155,693.43

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Solution

The fourth proportional to 576,417.55, 864,624.49 and 155,693.43 is: 233,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,417.55 : 864,624.49 = 155,693.43 : x
  2. Step 2: Convert to fraction form
    576,417.55/864,624.49 = 155,693.43/x
  3. Step 3: Cross multiply
    576,417.55x = 864,624.49 × 155,693.43
  4. Step 4: Simplify right side
    576,417.55x = 134,616,352,510.10
  5. Step 5: Solve for x
    x = 134,616,352,510.10/576,417.55
  6. Step 6: Final answer
    x = 233,539.65

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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.