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Finding the Fourth Proportional to 260,040.30, 390,060.45 and 224,610.90

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Solution

The fourth proportional to 260,040.30, 390,060.45 and 224,610.90 is: 336,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,040.30 : 390,060.45 = 224,610.90 : x
  2. Step 2: Convert to fraction form
    260,040.30/390,060.45 = 224,610.90/x
  3. Step 3: Cross multiply
    260,040.30x = 390,060.45 × 224,610.90
  4. Step 4: Simplify right side
    260,040.30x = 87,611,828,728.91
  5. Step 5: Solve for x
    x = 87,611,828,728.91/260,040.30
  6. Step 6: Final answer
    x = 336,916.35

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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.