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Finding the Fourth Proportional to 479,790,689.28, 719,686,033.65 and 116,285,045.28

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Solution

The fourth proportional to 479,790,689.28, 719,686,033.65 and 116,285,045.28 is: 174,427,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,790,689.28 : 719,686,033.65 = 116,285,045.28 : x
  2. Step 2: Convert to fraction form
    479,790,689.28/719,686,033.65 = 116,285,045.28/x
  3. Step 3: Cross multiply
    479,790,689.28x = 719,686,033.65 × 116,285,045.28
  4. Step 4: Simplify right side
    479,790,689.28x = 83,688,723,010,373,856
  5. Step 5: Solve for x
    x = 83,688,723,010,373,856/479,790,689.28
  6. Step 6: Final answer
    x = 174,427,567.85

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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.