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Finding the Fourth Proportional to 416,810.56, 575,133.60 and 247,017.28

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Solution

The fourth proportional to 416,810.56, 575,133.60 and 247,017.28 is: 340,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,810.56 : 575,133.60 = 247,017.28 : x
  2. Step 2: Convert to fraction form
    416,810.56/575,133.60 = 247,017.28/x
  3. Step 3: Cross multiply
    416,810.56x = 575,133.60 × 247,017.28
  4. Step 4: Simplify right side
    416,810.56x = 142,067,937,508.61
  5. Step 5: Solve for x
    x = 142,067,937,508.61/416,810.56
  6. Step 6: Final answer
    x = 340,845.34

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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.