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Finding the Fourth Proportional to 484,782.56, 668,374.58 and 397,242.17

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Solution

The fourth proportional to 484,782.56, 668,374.58 and 397,242.17 is: 547,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,782.56 : 668,374.58 = 397,242.17 : x
  2. Step 2: Convert to fraction form
    484,782.56/668,374.58 = 397,242.17/x
  3. Step 3: Cross multiply
    484,782.56x = 668,374.58 × 397,242.17
  4. Step 4: Simplify right side
    484,782.56x = 265,506,566,183.27
  5. Step 5: Solve for x
    x = 265,506,566,183.27/484,782.56
  6. Step 6: Final answer
    x = 547,681.77

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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.