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Finding the Fourth Proportional to 563,437.85, 777,458.19 and 318,333.15

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Solution

The fourth proportional to 563,437.85, 777,458.19 and 318,333.15 is: 439,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,437.85 : 777,458.19 = 318,333.15 : x
  2. Step 2: Convert to fraction form
    563,437.85/777,458.19 = 318,333.15/x
  3. Step 3: Cross multiply
    563,437.85x = 777,458.19 × 318,333.15
  4. Step 4: Simplify right side
    563,437.85x = 247,490,714,616.00
  5. Step 5: Solve for x
    x = 247,490,714,616.00/563,437.85
  6. Step 6: Final answer
    x = 439,251.14

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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.