Home / 619,734.57-927,608.91-319,806.63

Finding the Fourth Proportional to 619,734.57, 927,608.91 and 319,806.63

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Solution

The fourth proportional to 619,734.57, 927,608.91 and 319,806.63 is: 478,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,734.57 : 927,608.91 = 319,806.63 : x
  2. Step 2: Convert to fraction form
    619,734.57/927,608.91 = 319,806.63/x
  3. Step 3: Cross multiply
    619,734.57x = 927,608.91 × 319,806.63
  4. Step 4: Simplify right side
    619,734.57x = 296,655,479,465.07
  5. Step 5: Solve for x
    x = 296,655,479,465.07/619,734.57
  6. Step 6: Final answer
    x = 478,681.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.