Home / 805,188.79-1,111,174.34-442,627.93

Finding the Fourth Proportional to 805,188.79, 1,111,174.34 and 442,627.93

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Solution

The fourth proportional to 805,188.79, 1,111,174.34 and 442,627.93 is: 610,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,188.79 : 1,111,174.34 = 442,627.93 : x
  2. Step 2: Convert to fraction form
    805,188.79/1,111,174.34 = 442,627.93/x
  3. Step 3: Cross multiply
    805,188.79x = 1,111,174.34 × 442,627.93
  4. Step 4: Simplify right side
    805,188.79x = 491,836,790,908.79
  5. Step 5: Solve for x
    x = 491,836,790,908.79/805,188.79
  6. Step 6: Final answer
    x = 610,834.13

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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.