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Finding the Fourth Proportional to 572,687.33, 790,703.94 and 357,923.93

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Solution

The fourth proportional to 572,687.33, 790,703.94 and 357,923.93 is: 494,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,687.33 : 790,703.94 = 357,923.93 : x
  2. Step 2: Convert to fraction form
    572,687.33/790,703.94 = 357,923.93/x
  3. Step 3: Cross multiply
    572,687.33x = 790,703.94 × 357,923.93
  4. Step 4: Simplify right side
    572,687.33x = 283,011,861,671.28
  5. Step 5: Solve for x
    x = 283,011,861,671.28/572,687.33
  6. Step 6: Final answer
    x = 494,182.16

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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.