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Finding the Fourth Proportional to 622,919,766.72, 859,634,849.28 and 344,480,024.64

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Solution

The fourth proportional to 622,919,766.72, 859,634,849.28 and 344,480,024.64 is: 475,385,514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,919,766.72 : 859,634,849.28 = 344,480,024.64 : x
  2. Step 2: Convert to fraction form
    622,919,766.72/859,634,849.28 = 344,480,024.64/x
  3. Step 3: Cross multiply
    622,919,766.72x = 859,634,849.28 × 344,480,024.64
  4. Step 4: Simplify right side
    622,919,766.72x = 296,127,034,061,377,088
  5. Step 5: Solve for x
    x = 296,127,034,061,377,088/622,919,766.72
  6. Step 6: Final answer
    x = 475,385,514.93

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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.