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Finding the Fourth Proportional to 292,235.40, 438,747.30 and 187,259.40

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Solution

The fourth proportional to 292,235.40, 438,747.30 and 187,259.40 is: 281,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,235.40 : 438,747.30 = 187,259.40 : x
  2. Step 2: Convert to fraction form
    292,235.40/438,747.30 = 187,259.40/x
  3. Step 3: Cross multiply
    292,235.40x = 438,747.30 × 187,259.40
  4. Step 4: Simplify right side
    292,235.40x = 82,159,556,149.62
  5. Step 5: Solve for x
    x = 82,159,556,149.62/292,235.40
  6. Step 6: Final answer
    x = 281,141.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.