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Finding the Fourth Proportional to 605,628.30, 908,442.45 and 268,538.70

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Solution

The fourth proportional to 605,628.30, 908,442.45 and 268,538.70 is: 402,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,628.30 : 908,442.45 = 268,538.70 : x
  2. Step 2: Convert to fraction form
    605,628.30/908,442.45 = 268,538.70/x
  3. Step 3: Cross multiply
    605,628.30x = 908,442.45 × 268,538.70
  4. Step 4: Simplify right side
    605,628.30x = 243,951,954,547.82
  5. Step 5: Solve for x
    x = 243,951,954,547.82/605,628.30
  6. Step 6: Final answer
    x = 402,808.05

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Similar ratio
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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.