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Finding the Fourth Proportional to 292,616.20, 403,810.34 and 158,480.20

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Solution

The fourth proportional to 292,616.20, 403,810.34 and 158,480.20 is: 218,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,616.20 : 403,810.34 = 158,480.20 : x
  2. Step 2: Convert to fraction form
    292,616.20/403,810.34 = 158,480.20/x
  3. Step 3: Cross multiply
    292,616.20x = 403,810.34 × 158,480.20
  4. Step 4: Simplify right side
    292,616.20x = 63,995,943,445.27
  5. Step 5: Solve for x
    x = 63,995,943,445.27/292,616.20
  6. Step 6: Final answer
    x = 218,702.67

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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.