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Finding the Fourth Proportional to 574,155.60, 792,330.84 and 316,047.84

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Solution

The fourth proportional to 574,155.60, 792,330.84 and 316,047.84 is: 436,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,155.60 : 792,330.84 = 316,047.84 : x
  2. Step 2: Convert to fraction form
    574,155.60/792,330.84 = 316,047.84/x
  3. Step 3: Cross multiply
    574,155.60x = 792,330.84 × 316,047.84
  4. Step 4: Simplify right side
    574,155.60x = 250,414,450,547.39
  5. Step 5: Solve for x
    x = 250,414,450,547.39/574,155.60
  6. Step 6: Final answer
    x = 436,143.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.