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Finding the Fourth Proportional to 527,064, 790,617.87 and 153,087

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Solution

The fourth proportional to 527,064, 790,617.87 and 153,087 is: 229,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,064 : 790,617.87 = 153,087 : x
  2. Step 2: Convert to fraction form
    527,064/790,617.87 = 153,087/x
  3. Step 3: Cross multiply
    527,064x = 790,617.87 × 153,087
  4. Step 4: Simplify right side
    527,064x = 121,033,317,864.69
  5. Step 5: Solve for x
    x = 121,033,317,864.69/527,064
  6. Step 6: Final answer
    x = 229,636.85

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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.