Home / 671,139.05-926,191.35-365,235.15

Finding the Fourth Proportional to 671,139.05, 926,191.35 and 365,235.15

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Solution

The fourth proportional to 671,139.05, 926,191.35 and 365,235.15 is: 504,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,139.05 : 926,191.35 = 365,235.15 : x
  2. Step 2: Convert to fraction form
    671,139.05/926,191.35 = 365,235.15/x
  3. Step 3: Cross multiply
    671,139.05x = 926,191.35 × 365,235.15
  4. Step 4: Simplify right side
    671,139.05x = 338,277,636,645.95
  5. Step 5: Solve for x
    x = 338,277,636,645.95/671,139.05
  6. Step 6: Final answer
    x = 504,035.10

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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.