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Finding the Fourth Proportional to 514,699.35, 772,352.33 and 215,156.85

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Solution

The fourth proportional to 514,699.35, 772,352.33 and 215,156.85 is: 322,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,699.35 : 772,352.33 = 215,156.85 : x
  2. Step 2: Convert to fraction form
    514,699.35/772,352.33 = 215,156.85/x
  3. Step 3: Cross multiply
    514,699.35x = 772,352.33 × 215,156.85
  4. Step 4: Simplify right side
    514,699.35x = 166,176,893,337.18
  5. Step 5: Solve for x
    x = 166,176,893,337.18/514,699.35
  6. Step 6: Final answer
    x = 322,862.06

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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.