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Finding the Fourth Proportional to 360,311.16, 497,229.24 and 199,166.28

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Solution

The fourth proportional to 360,311.16, 497,229.24 and 199,166.28 is: 274,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,311.16 : 497,229.24 = 199,166.28 : x
  2. Step 2: Convert to fraction form
    360,311.16/497,229.24 = 199,166.28/x
  3. Step 3: Cross multiply
    360,311.16x = 497,229.24 × 199,166.28
  4. Step 4: Simplify right side
    360,311.16x = 99,031,298,038.03
  5. Step 5: Solve for x
    x = 99,031,298,038.03/360,311.16
  6. Step 6: Final answer
    x = 274,849.38

Related Problems

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Half scale
Find fourth proportional to 720,622.32, 994,458.48 and 398,332.56
Double scale
Find fourth proportional to 360,312.16, 497,230.62 and 199,167.28
Similar ratio
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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.