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Finding the Fourth Proportional to 426,906.98, 589,132.20 and 235,920.42

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Solution

The fourth proportional to 426,906.98, 589,132.20 and 235,920.42 is: 325,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,906.98 : 589,132.20 = 235,920.42 : x
  2. Step 2: Convert to fraction form
    426,906.98/589,132.20 = 235,920.42/x
  3. Step 3: Cross multiply
    426,906.98x = 589,132.20 × 235,920.42
  4. Step 4: Simplify right side
    426,906.98x = 138,988,316,059.52
  5. Step 5: Solve for x
    x = 138,988,316,059.52/426,906.98
  6. Step 6: Final answer
    x = 325,570.49

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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.