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Finding the Fourth Proportional to 292,663.19, 438,994.67 and 82,301.12

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Solution

The fourth proportional to 292,663.19, 438,994.67 and 82,301.12 is: 123,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,663.19 : 438,994.67 = 82,301.12 : x
  2. Step 2: Convert to fraction form
    292,663.19/438,994.67 = 82,301.12/x
  3. Step 3: Cross multiply
    292,663.19x = 438,994.67 × 82,301.12
  4. Step 4: Simplify right side
    292,663.19x = 36,129,752,603.52
  5. Step 5: Solve for x
    x = 36,129,752,603.52/292,663.19
  6. Step 6: Final answer
    x = 123,451.65

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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.