Home / 805,356.48-1,111,394.16-442,817.40

Finding the Fourth Proportional to 805,356.48, 1,111,394.16 and 442,817.40

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Solution

The fourth proportional to 805,356.48, 1,111,394.16 and 442,817.40 is: 611,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,356.48 : 1,111,394.16 = 442,817.40 : x
  2. Step 2: Convert to fraction form
    805,356.48/1,111,394.16 = 442,817.40/x
  3. Step 3: Cross multiply
    805,356.48x = 1,111,394.16 × 442,817.40
  4. Step 4: Simplify right side
    805,356.48x = 492,144,672,306.38
  5. Step 5: Solve for x
    x = 492,144,672,306.38/805,356.48
  6. Step 6: Final answer
    x = 611,089.23

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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.