Home / 881,151.72-1,215,897.96-518,553.96

Finding the Fourth Proportional to 881,151.72, 1,215,897.96 and 518,553.96

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Solution

The fourth proportional to 881,151.72, 1,215,897.96 and 518,553.96 is: 715,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,151.72 : 1,215,897.96 = 518,553.96 : x
  2. Step 2: Convert to fraction form
    881,151.72/1,215,897.96 = 518,553.96/x
  3. Step 3: Cross multiply
    881,151.72x = 1,215,897.96 × 518,553.96
  4. Step 4: Simplify right side
    881,151.72x = 630,508,702,113.92
  5. Step 5: Solve for x
    x = 630,508,702,113.92/881,151.72
  6. Step 6: Final answer
    x = 715,550.67

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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.