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Finding the Fourth Proportional to 325,937,432.80, 488,906,149.20 and 249,409,928.80

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Solution

The fourth proportional to 325,937,432.80, 488,906,149.20 and 249,409,928.80 is: 374,114,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,937,432.80 : 488,906,149.20 = 249,409,928.80 : x
  2. Step 2: Convert to fraction form
    325,937,432.80/488,906,149.20 = 249,409,928.80/x
  3. Step 3: Cross multiply
    325,937,432.80x = 488,906,149.20 × 249,409,928.80
  4. Step 4: Simplify right side
    325,937,432.80x = 121,938,047,861,854,176
  5. Step 5: Solve for x
    x = 121,938,047,861,854,176/325,937,432.80
  6. Step 6: Final answer
    x = 374,114,893.20

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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.