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Finding the Fourth Proportional to 472,435,640.80, 708,653,461.20 and 424,818,527.20

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Solution

The fourth proportional to 472,435,640.80, 708,653,461.20 and 424,818,527.20 is: 637,227,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,435,640.80 : 708,653,461.20 = 424,818,527.20 : x
  2. Step 2: Convert to fraction form
    472,435,640.80/708,653,461.20 = 424,818,527.20/x
  3. Step 3: Cross multiply
    472,435,640.80x = 708,653,461.20 × 424,818,527.20
  4. Step 4: Simplify right side
    472,435,640.80x = 301,049,119,682,166,336
  5. Step 5: Solve for x
    x = 301,049,119,682,166,336/472,435,640.80
  6. Step 6: Final answer
    x = 637,227,790.80

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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.