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Finding the Fourth Proportional to 514,788.48, 772,182.72 and 140,814.72

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Solution

The fourth proportional to 514,788.48, 772,182.72 and 140,814.72 is: 211,222.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,788.48 : 772,182.72 = 140,814.72 : x
  2. Step 2: Convert to fraction form
    514,788.48/772,182.72 = 140,814.72/x
  3. Step 3: Cross multiply
    514,788.48x = 772,182.72 × 140,814.72
  4. Step 4: Simplify right side
    514,788.48x = 108,734,693,505.64
  5. Step 5: Solve for x
    x = 108,734,693,505.64/514,788.48
  6. Step 6: Final answer
    x = 211,222.08

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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.