Home / 805,306.13-1,111,294.13-442,727.36

Finding the Fourth Proportional to 805,306.13, 1,111,294.13 and 442,727.36

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Solution

The fourth proportional to 805,306.13, 1,111,294.13 and 442,727.36 is: 610,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,306.13 : 1,111,294.13 = 442,727.36 : x
  2. Step 2: Convert to fraction form
    805,306.13/1,111,294.13 = 442,727.36/x
  3. Step 3: Cross multiply
    805,306.13x = 1,111,294.13 × 442,727.36
  4. Step 4: Simplify right side
    805,306.13x = 492,000,308,588.29
  5. Step 5: Solve for x
    x = 492,000,308,588.29/805,306.13
  6. Step 6: Final answer
    x = 610,948.18

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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.