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Finding the Fourth Proportional to 1,062,885,129.20, 1,594,327,693.80 and 830,432,835.80

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Solution

The fourth proportional to 1,062,885,129.20, 1,594,327,693.80 and 830,432,835.80 is: 1,245,649,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062,885,129.20 : 1,594,327,693.80 = 830,432,835.80 : x
  2. Step 2: Convert to fraction form
    1,062,885,129.20/1,594,327,693.80 = 830,432,835.80/x
  3. Step 3: Cross multiply
    1,062,885,129.20x = 1,594,327,693.80 × 830,432,835.80
  4. Step 4: Simplify right side
    1,062,885,129.20x = 1,323,982,067,956,807,936
  5. Step 5: Solve for x
    x = 1,323,982,067,956,807,936/1,062,885,129.20
  6. Step 6: Final answer
    x = 1,245,649,253.70

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Double scale
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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.