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Finding the Fourth Proportional to 438,235.80, 604,765.38 and 237,031.80

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Solution

The fourth proportional to 438,235.80, 604,765.38 and 237,031.80 is: 327,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,235.80 : 604,765.38 = 237,031.80 : x
  2. Step 2: Convert to fraction form
    438,235.80/604,765.38 = 237,031.80/x
  3. Step 3: Cross multiply
    438,235.80x = 604,765.38 × 237,031.80
  4. Step 4: Simplify right side
    438,235.80x = 143,348,626,599.08
  5. Step 5: Solve for x
    x = 143,348,626,599.08/438,235.80
  6. Step 6: Final answer
    x = 327,103.87

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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.