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Finding the Fourth Proportional to 5,935,612.80, 8,903,419.20 and 1,447,888.80

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Solution

The fourth proportional to 5,935,612.80, 8,903,419.20 and 1,447,888.80 is: 2,171,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,935,612.80 : 8,903,419.20 = 1,447,888.80 : x
  2. Step 2: Convert to fraction form
    5,935,612.80/8,903,419.20 = 1,447,888.80/x
  3. Step 3: Cross multiply
    5,935,612.80x = 8,903,419.20 × 1,447,888.80
  4. Step 4: Simplify right side
    5,935,612.80x = 12,891,160,941,384.96
  5. Step 5: Solve for x
    x = 12,891,160,941,384.96/5,935,612.80
  6. Step 6: Final answer
    x = 2,171,833.20

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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.