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Finding the Fourth Proportional to 572,531.76, 790,268.16 and 357,534.96

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Solution

The fourth proportional to 572,531.76, 790,268.16 and 357,534.96 is: 493,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,531.76 : 790,268.16 = 357,534.96 : x
  2. Step 2: Convert to fraction form
    572,531.76/790,268.16 = 357,534.96/x
  3. Step 3: Cross multiply
    572,531.76x = 790,268.16 × 357,534.96
  4. Step 4: Simplify right side
    572,531.76x = 282,548,494,974.87
  5. Step 5: Solve for x
    x = 282,548,494,974.87/572,531.76
  6. Step 6: Final answer
    x = 493,507.11

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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.