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Finding the Fourth Proportional to 260,046.80, 390,070.20 and 224,617.40

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Solution

The fourth proportional to 260,046.80, 390,070.20 and 224,617.40 is: 336,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,046.80 : 390,070.20 = 224,617.40 : x
  2. Step 2: Convert to fraction form
    260,046.80/390,070.20 = 224,617.40/x
  3. Step 3: Cross multiply
    260,046.80x = 390,070.20 × 224,617.40
  4. Step 4: Simplify right side
    260,046.80x = 87,616,554,141.48
  5. Step 5: Solve for x
    x = 87,616,554,141.48/260,046.80
  6. Step 6: Final answer
    x = 336,926.10

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1.5x scale

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.