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Finding the Fourth Proportional to 262,001.40, 392,418.90 and 227,009.40

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Solution

The fourth proportional to 262,001.40, 392,418.90 and 227,009.40 is: 340,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,001.40 : 392,418.90 = 227,009.40 : x
  2. Step 2: Convert to fraction form
    262,001.40/392,418.90 = 227,009.40/x
  3. Step 3: Cross multiply
    262,001.40x = 392,418.90 × 227,009.40
  4. Step 4: Simplify right side
    262,001.40x = 89,082,779,037.66
  5. Step 5: Solve for x
    x = 89,082,779,037.66/262,001.40
  6. Step 6: Final answer
    x = 340,008.79

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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.