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Finding the Fourth Proportional to 612,562.88, 845,279.88 and 567,423.20

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Solution

The fourth proportional to 612,562.88, 845,279.88 and 567,423.20 is: 782,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,562.88 : 845,279.88 = 567,423.20 : x
  2. Step 2: Convert to fraction form
    612,562.88/845,279.88 = 567,423.20/x
  3. Step 3: Cross multiply
    612,562.88x = 845,279.88 × 567,423.20
  4. Step 4: Simplify right side
    612,562.88x = 479,631,414,405.22
  5. Step 5: Solve for x
    x = 479,631,414,405.22/612,562.88
  6. Step 6: Final answer
    x = 782,991.31

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1.5x scale

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.