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Finding the Fourth Proportional to 935,793,080.10, 1,406,712,928.95 and 863,233,668.90

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Solution

The fourth proportional to 935,793,080.10, 1,406,712,928.95 and 863,233,668.90 is: 1,297,639,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,793,080.10 : 1,406,712,928.95 = 863,233,668.90 : x
  2. Step 2: Convert to fraction form
    935,793,080.10/1,406,712,928.95 = 863,233,668.90/x
  3. Step 3: Cross multiply
    935,793,080.10x = 1,406,712,928.95 × 863,233,668.90
  4. Step 4: Simplify right side
    935,793,080.10x = 1,214,321,962,746,573,568
  5. Step 5: Solve for x
    x = 1,214,321,962,746,573,568/935,793,080.10
  6. Step 6: Final answer
    x = 1,297,639,391.20

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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.