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Finding the Fourth Proportional to 567,060.60, 849,278.70 and 388,601.40

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Solution

The fourth proportional to 567,060.60, 849,278.70 and 388,601.40 is: 582,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,060.60 : 849,278.70 = 388,601.40 : x
  2. Step 2: Convert to fraction form
    567,060.60/849,278.70 = 388,601.40/x
  3. Step 3: Cross multiply
    567,060.60x = 849,278.70 × 388,601.40
  4. Step 4: Simplify right side
    567,060.60x = 330,030,891,810.18
  5. Step 5: Solve for x
    x = 330,030,891,810.18/567,060.60
  6. Step 6: Final answer
    x = 582,002.86

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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.