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Finding the Fourth Proportional to 407,641.02, 611,422.65 and 249,788.22

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Solution

The fourth proportional to 407,641.02, 611,422.65 and 249,788.22 is: 374,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,641.02 : 611,422.65 = 249,788.22 : x
  2. Step 2: Convert to fraction form
    407,641.02/611,422.65 = 249,788.22/x
  3. Step 3: Cross multiply
    407,641.02x = 611,422.65 × 249,788.22
  4. Step 4: Simplify right side
    407,641.02x = 152,726,175,411.18
  5. Step 5: Solve for x
    x = 152,726,175,411.18/407,641.02
  6. Step 6: Final answer
    x = 374,658.51

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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.