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Finding the Fourth Proportional to 426,448.80, 588,508.48 and 235,474.16

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Solution

The fourth proportional to 426,448.80, 588,508.48 and 235,474.16 is: 324,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,448.80 : 588,508.48 = 235,474.16 : x
  2. Step 2: Convert to fraction form
    426,448.80/588,508.48 = 235,474.16/x
  3. Step 3: Cross multiply
    426,448.80x = 588,508.48 × 235,474.16
  4. Step 4: Simplify right side
    426,448.80x = 138,578,539,980.88
  5. Step 5: Solve for x
    x = 138,578,539,980.88/426,448.80
  6. Step 6: Final answer
    x = 324,959.39

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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.