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Finding the Fourth Proportional to 575,751,409.20, 861,926,502.60 and 381,881,732.40

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Solution

The fourth proportional to 575,751,409.20, 861,926,502.60 and 381,881,732.40 is: 571,694,625.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,751,409.20 : 861,926,502.60 = 381,881,732.40 : x
  2. Step 2: Convert to fraction form
    575,751,409.20/861,926,502.60 = 381,881,732.40/x
  3. Step 3: Cross multiply
    575,751,409.20x = 861,926,502.60 × 381,881,732.40
  4. Step 4: Simplify right side
    575,751,409.20x = 329,153,986,014,361,088
  5. Step 5: Solve for x
    x = 329,153,986,014,361,088/575,751,409.20
  6. Step 6: Final answer
    x = 571,694,625.07

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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.