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Finding the Fourth Proportional to 763,347.70, 1,067,287.10 and 763,347.70

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Solution

The fourth proportional to 763,347.70, 1,067,287.10 and 763,347.70 is: 1,067,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,347.70 : 1,067,287.10 = 763,347.70 : x
  2. Step 2: Convert to fraction form
    763,347.70/1,067,287.10 = 763,347.70/x
  3. Step 3: Cross multiply
    763,347.70x = 1,067,287.10 × 763,347.70
  4. Step 4: Simplify right side
    763,347.70x = 814,711,153,024.67
  5. Step 5: Solve for x
    x = 814,711,153,024.67/763,347.70
  6. Step 6: Final answer
    x = 1,067,287.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.