Home / 498,023.13-687,271.11-271,668.63

Finding the Fourth Proportional to 498,023.13, 687,271.11 and 271,668.63

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Solution

The fourth proportional to 498,023.13, 687,271.11 and 271,668.63 is: 374,902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,023.13 : 687,271.11 = 271,668.63 : x
  2. Step 2: Convert to fraction form
    498,023.13/687,271.11 = 271,668.63/x
  3. Step 3: Cross multiply
    498,023.13x = 687,271.11 × 271,668.63
  4. Step 4: Simplify right side
    498,023.13x = 186,710,000,892.28
  5. Step 5: Solve for x
    x = 186,710,000,892.28/498,023.13
  6. Step 6: Final answer
    x = 374,902.27

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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.