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Finding the Fourth Proportional to 715,147,994.55, 986,959,453.03 and 429,050,248.97

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Solution

The fourth proportional to 715,147,994.55, 986,959,453.03 and 429,050,248.97 is: 592,122,472.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,147,994.55 : 986,959,453.03 = 429,050,248.97 : x
  2. Step 2: Convert to fraction form
    715,147,994.55/986,959,453.03 = 429,050,248.97/x
  3. Step 3: Cross multiply
    715,147,994.55x = 986,959,453.03 × 429,050,248.97
  4. Step 4: Simplify right side
    715,147,994.55x = 423,455,199,050,563,136
  5. Step 5: Solve for x
    x = 423,455,199,050,563,136/715,147,994.55
  6. Step 6: Final answer
    x = 592,122,472.94

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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.