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Finding the Fourth Proportional to 576,417.69, 864,624.69 and 155,693.57

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Solution

The fourth proportional to 576,417.69, 864,624.69 and 155,693.57 is: 233,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,417.69 : 864,624.69 = 155,693.57 : x
  2. Step 2: Convert to fraction form
    576,417.69/864,624.69 = 155,693.57/x
  3. Step 3: Cross multiply
    576,417.69x = 864,624.69 × 155,693.57
  4. Step 4: Simplify right side
    576,417.69x = 134,616,500,373.12
  5. Step 5: Solve for x
    x = 134,616,500,373.12/576,417.69
  6. Step 6: Final answer
    x = 233,539.85

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1.5x scale

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.