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Finding the Fourth Proportional to 292,332.20, 403,430.10 and 165,000.20

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Solution

The fourth proportional to 292,332.20, 403,430.10 and 165,000.20 is: 227,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,332.20 : 403,430.10 = 165,000.20 : x
  2. Step 2: Convert to fraction form
    292,332.20/403,430.10 = 165,000.20/x
  3. Step 3: Cross multiply
    292,332.20x = 403,430.10 × 165,000.20
  4. Step 4: Simplify right side
    292,332.20x = 66,566,047,186.02
  5. Step 5: Solve for x
    x = 66,566,047,186.02/292,332.20
  6. Step 6: Final answer
    x = 227,706.86

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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.