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Finding the Fourth Proportional to 472,080.70, 708,121.05 and 425,424.70

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Solution

The fourth proportional to 472,080.70, 708,121.05 and 425,424.70 is: 638,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,080.70 : 708,121.05 = 425,424.70 : x
  2. Step 2: Convert to fraction form
    472,080.70/708,121.05 = 425,424.70/x
  3. Step 3: Cross multiply
    472,080.70x = 708,121.05 × 425,424.70
  4. Step 4: Simplify right side
    472,080.70x = 301,252,185,259.94
  5. Step 5: Solve for x
    x = 301,252,185,259.94/472,080.70
  6. Step 6: Final answer
    x = 638,137.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.