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Finding the Fourth Proportional to 426,005.67, 587,887.80 and 235,019.07

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Solution

The fourth proportional to 426,005.67, 587,887.80 and 235,019.07 is: 324,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,005.67 : 587,887.80 = 235,019.07 : x
  2. Step 2: Convert to fraction form
    426,005.67/587,887.80 = 235,019.07/x
  3. Step 3: Cross multiply
    426,005.67x = 587,887.80 × 235,019.07
  4. Step 4: Simplify right side
    426,005.67x = 138,164,844,020.35
  5. Step 5: Solve for x
    x = 138,164,844,020.35/426,005.67
  6. Step 6: Final answer
    x = 324,326.30

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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.