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Finding the Fourth Proportional to 325,926,502.80, 488,889,754.20 and 249,398,998.80

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Solution

The fourth proportional to 325,926,502.80, 488,889,754.20 and 249,398,998.80 is: 374,098,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,926,502.80 : 488,889,754.20 = 249,398,998.80 : x
  2. Step 2: Convert to fraction form
    325,926,502.80/488,889,754.20 = 249,398,998.80/x
  3. Step 3: Cross multiply
    325,926,502.80x = 488,889,754.20 × 249,398,998.80
  4. Step 4: Simplify right side
    325,926,502.80x = 121,928,615,221,058,096
  5. Step 5: Solve for x
    x = 121,928,615,221,058,096/325,926,502.80
  6. Step 6: Final answer
    x = 374,098,498.20

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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.