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Finding the Fourth Proportional to 581,986,311.62, 872,971,246.40 and 270,919,944

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Solution

The fourth proportional to 581,986,311.62, 872,971,246.40 and 270,919,944 is: 406,376,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,986,311.62 : 872,971,246.40 = 270,919,944 : x
  2. Step 2: Convert to fraction form
    581,986,311.62/872,971,246.40 = 270,919,944/x
  3. Step 3: Cross multiply
    581,986,311.62x = 872,971,246.40 × 270,919,944
  4. Step 4: Simplify right side
    581,986,311.62x = 236,505,321,186,943,584
  5. Step 5: Solve for x
    x = 236,505,321,186,943,584/581,986,311.62
  6. Step 6: Final answer
    x = 406,376,089.04

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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.