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Finding the Fourth Proportional to 872,079,423.62, 1,203,262,750.38 and 495,706,385.88

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Solution

The fourth proportional to 872,079,423.62, 1,203,262,750.38 and 495,706,385.88 is: 683,957,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,079,423.62 : 1,203,262,750.38 = 495,706,385.88 : x
  2. Step 2: Convert to fraction form
    872,079,423.62/1,203,262,750.38 = 495,706,385.88/x
  3. Step 3: Cross multiply
    872,079,423.62x = 1,203,262,750.38 × 495,706,385.88
  4. Step 4: Simplify right side
    872,079,423.62x = 596,465,029,256,732,416
  5. Step 5: Solve for x
    x = 596,465,029,256,732,416/872,079,423.62
  6. Step 6: Final answer
    x = 683,957,232.68

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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.