Home / 514,916.16-772,374.86-215,232.78

Finding the Fourth Proportional to 514,916.16, 772,374.86 and 215,232.78

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Solution

The fourth proportional to 514,916.16, 772,374.86 and 215,232.78 is: 322,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,916.16 : 772,374.86 = 215,232.78 : x
  2. Step 2: Convert to fraction form
    514,916.16/772,374.86 = 215,232.78/x
  3. Step 3: Cross multiply
    514,916.16x = 772,374.86 × 215,232.78
  4. Step 4: Simplify right side
    514,916.16x = 166,240,388,319.91
  5. Step 5: Solve for x
    x = 166,240,388,319.91/514,916.16
  6. Step 6: Final answer
    x = 322,849.43

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Similar ratio
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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.