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Finding the Fourth Proportional to 517,571.04, 714,246.48 and 291,216.72

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Solution

The fourth proportional to 517,571.04, 714,246.48 and 291,216.72 is: 401,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,571.04 : 714,246.48 = 291,216.72 : x
  2. Step 2: Convert to fraction form
    517,571.04/714,246.48 = 291,216.72/x
  3. Step 3: Cross multiply
    517,571.04x = 714,246.48 × 291,216.72
  4. Step 4: Simplify right side
    517,571.04x = 208,000,517,177.15
  5. Step 5: Solve for x
    x = 208,000,517,177.15/517,571.04
  6. Step 6: Final answer
    x = 401,878.20

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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.