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Finding the Fourth Proportional to 692,656,983.95, 955,854,823.43 and 375,114,650.63

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Solution

The fourth proportional to 692,656,983.95, 955,854,823.43 and 375,114,650.63 is: 517,651,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,656,983.95 : 955,854,823.43 = 375,114,650.63 : x
  2. Step 2: Convert to fraction form
    692,656,983.95/955,854,823.43 = 375,114,650.63/x
  3. Step 3: Cross multiply
    692,656,983.95x = 955,854,823.43 × 375,114,650.63
  4. Step 4: Simplify right side
    692,656,983.95x = 358,555,148,140,103,296
  5. Step 5: Solve for x
    x = 358,555,148,140,103,296/692,656,983.95
  6. Step 6: Final answer
    x = 517,651,819.66

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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.