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Finding the Fourth Proportional to 417,018.98, 575,479.95 and 235,724.55

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Solution

The fourth proportional to 417,018.98, 575,479.95 and 235,724.55 is: 325,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,018.98 : 575,479.95 = 235,724.55 : x
  2. Step 2: Convert to fraction form
    417,018.98/575,479.95 = 235,724.55/x
  3. Step 3: Cross multiply
    417,018.98x = 575,479.95 × 235,724.55
  4. Step 4: Simplify right side
    417,018.98x = 135,654,752,247.77
  5. Step 5: Solve for x
    x = 135,654,752,247.77/417,018.98
  6. Step 6: Final answer
    x = 325,296.35

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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.