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Finding the Fourth Proportional to 567,489.79, 849,732.90 and 342,549.55

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Solution

The fourth proportional to 567,489.79, 849,732.90 and 342,549.55 is: 512,917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,489.79 : 849,732.90 = 342,549.55 : x
  2. Step 2: Convert to fraction form
    567,489.79/849,732.90 = 342,549.55/x
  3. Step 3: Cross multiply
    567,489.79x = 849,732.90 × 342,549.55
  4. Step 4: Simplify right side
    567,489.79x = 291,075,622,515.20
  5. Step 5: Solve for x
    x = 291,075,622,515.20/567,489.79
  6. Step 6: Final answer
    x = 512,917.81

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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.