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Finding the Fourth Proportional to 260,445.01, 392,619.58 and 243,084.97

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Solution

The fourth proportional to 260,445.01, 392,619.58 and 243,084.97 is: 366,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,445.01 : 392,619.58 = 243,084.97 : x
  2. Step 2: Convert to fraction form
    260,445.01/392,619.58 = 243,084.97/x
  3. Step 3: Cross multiply
    260,445.01x = 392,619.58 × 243,084.97
  4. Step 4: Simplify right side
    260,445.01x = 95,439,918,825.71
  5. Step 5: Solve for x
    x = 95,439,918,825.71/260,445.01
  6. Step 6: Final answer
    x = 366,449.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.