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Finding the Fourth Proportional to 574,680.84, 792,231.05 and 402,064.02

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Solution

The fourth proportional to 574,680.84, 792,231.05 and 402,064.02 is: 554,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,680.84 : 792,231.05 = 402,064.02 : x
  2. Step 2: Convert to fraction form
    574,680.84/792,231.05 = 402,064.02/x
  3. Step 3: Cross multiply
    574,680.84x = 792,231.05 × 402,064.02
  4. Step 4: Simplify right side
    574,680.84x = 318,527,598,721.50
  5. Step 5: Solve for x
    x = 318,527,598,721.50/574,680.84
  6. Step 6: Final answer
    x = 554,268.69

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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.