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Finding the Fourth Proportional to 292,334.40, 403,422.72 and 158,198.40

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Solution

The fourth proportional to 292,334.40, 403,422.72 and 158,198.40 is: 218,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,334.40 : 403,422.72 = 158,198.40 : x
  2. Step 2: Convert to fraction form
    292,334.40/403,422.72 = 158,198.40/x
  3. Step 3: Cross multiply
    292,334.40x = 403,422.72 × 158,198.40
  4. Step 4: Simplify right side
    292,334.40x = 63,820,828,827.65
  5. Step 5: Solve for x
    x = 63,820,828,827.65/292,334.40
  6. Step 6: Final answer
    x = 218,314.47

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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.