Home / 805,350.69-1,111,391.55-442,777.10

Finding the Fourth Proportional to 805,350.69, 1,111,391.55 and 442,777.10

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Solution

The fourth proportional to 805,350.69, 1,111,391.55 and 442,777.10 is: 611,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,350.69 : 1,111,391.55 = 442,777.10 : x
  2. Step 2: Convert to fraction form
    805,350.69/1,111,391.55 = 442,777.10/x
  3. Step 3: Cross multiply
    805,350.69x = 1,111,391.55 × 442,777.10
  4. Step 4: Simplify right side
    805,350.69x = 492,098,721,916.55
  5. Step 5: Solve for x
    x = 492,098,721,916.55/805,350.69
  6. Step 6: Final answer
    x = 611,036.57

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Half scale
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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.