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Finding the Fourth Proportional to 803,336,686.96, 1,108,543,788 and 450,844,600

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Solution

The fourth proportional to 803,336,686.96, 1,108,543,788 and 450,844,600 is: 622,131,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,336,686.96 : 1,108,543,788 = 450,844,600 : x
  2. Step 2: Convert to fraction form
    803,336,686.96/1,108,543,788 = 450,844,600/x
  3. Step 3: Cross multiply
    803,336,686.96x = 1,108,543,788 × 450,844,600
  4. Step 4: Simplify right side
    803,336,686.96x = 499,780,980,683,344,768
  5. Step 5: Solve for x
    x = 499,780,980,683,344,768/803,336,686.96
  6. Step 6: Final answer
    x = 622,131,403.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.