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Finding the Fourth Proportional to 514,945.80, 772,937.10 and 248,920.20

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Solution

The fourth proportional to 514,945.80, 772,937.10 and 248,920.20 is: 373,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,945.80 : 772,937.10 = 248,920.20 : x
  2. Step 2: Convert to fraction form
    514,945.80/772,937.10 = 248,920.20/x
  3. Step 3: Cross multiply
    514,945.80x = 772,937.10 × 248,920.20
  4. Step 4: Simplify right side
    514,945.80x = 192,399,657,519.42
  5. Step 5: Solve for x
    x = 192,399,657,519.42/514,945.80
  6. Step 6: Final answer
    x = 373,630.89

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Double scale
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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.