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Finding the Fourth Proportional to 292,399.57, 403,512.63 and 158,263.57

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Solution

The fourth proportional to 292,399.57, 403,512.63 and 158,263.57 is: 218,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,399.57 : 403,512.63 = 158,263.57 : x
  2. Step 2: Convert to fraction form
    292,399.57/403,512.63 = 158,263.57/x
  3. Step 3: Cross multiply
    292,399.57x = 403,512.63 × 158,263.57
  4. Step 4: Simplify right side
    292,399.57x = 63,861,349,363.89
  5. Step 5: Solve for x
    x = 63,861,349,363.89/292,399.57
  6. Step 6: Final answer
    x = 218,404.39

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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.