Home / 805,500.18-1,111,560.36-442,902.47

Finding the Fourth Proportional to 805,500.18, 1,111,560.36 and 442,902.47

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Solution

The fourth proportional to 805,500.18, 1,111,560.36 and 442,902.47 is: 611,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,500.18 : 1,111,560.36 = 442,902.47 : x
  2. Step 2: Convert to fraction form
    805,500.18/1,111,560.36 = 442,902.47/x
  3. Step 3: Cross multiply
    805,500.18x = 1,111,560.36 × 442,902.47
  4. Step 4: Simplify right side
    805,500.18x = 492,312,823,440.29
  5. Step 5: Solve for x
    x = 492,312,823,440.29/805,500.18
  6. Step 6: Final answer
    x = 611,188.97

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Double scale
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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.