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Finding the Fourth Proportional to 615,034.20, 922,113.90 and 235,808.40

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Solution

The fourth proportional to 615,034.20, 922,113.90 and 235,808.40 is: 353,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,034.20 : 922,113.90 = 235,808.40 : x
  2. Step 2: Convert to fraction form
    615,034.20/922,113.90 = 235,808.40/x
  3. Step 3: Cross multiply
    615,034.20x = 922,113.90 × 235,808.40
  4. Step 4: Simplify right side
    615,034.20x = 217,442,203,376.76
  5. Step 5: Solve for x
    x = 217,442,203,376.76/615,034.20
  6. Step 6: Final answer
    x = 353,544.90

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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.