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Finding the Fourth Proportional to 614,428.30, 921,642.45 and 193,746.70

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Solution

The fourth proportional to 614,428.30, 921,642.45 and 193,746.70 is: 290,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,428.30 : 921,642.45 = 193,746.70 : x
  2. Step 2: Convert to fraction form
    614,428.30/921,642.45 = 193,746.70/x
  3. Step 3: Cross multiply
    614,428.30x = 921,642.45 × 193,746.70
  4. Step 4: Simplify right side
    614,428.30x = 178,565,183,267.42
  5. Step 5: Solve for x
    x = 178,565,183,267.42/614,428.30
  6. Step 6: Final answer
    x = 290,620.05

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Similar ratio
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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.