Home / 923,442.72-1,274,345.84-515,520.96

Finding the Fourth Proportional to 923,442.72, 1,274,345.84 and 515,520.96

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Solution

The fourth proportional to 923,442.72, 1,274,345.84 and 515,520.96 is: 711,416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,442.72 : 1,274,345.84 = 515,520.96 : x
  2. Step 2: Convert to fraction form
    923,442.72/1,274,345.84 = 515,520.96/x
  3. Step 3: Cross multiply
    923,442.72x = 1,274,345.84 × 515,520.96
  4. Step 4: Simplify right side
    923,442.72x = 656,951,990,808.81
  5. Step 5: Solve for x
    x = 656,951,990,808.81/923,442.72
  6. Step 6: Final answer
    x = 711,416.07

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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.