Home / 805,185.65-1,111,170-442,624.79

Finding the Fourth Proportional to 805,185.65, 1,111,170 and 442,624.79

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Solution

The fourth proportional to 805,185.65, 1,111,170 and 442,624.79 is: 610,829.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,185.65 : 1,111,170 = 442,624.79 : x
  2. Step 2: Convert to fraction form
    805,185.65/1,111,170 = 442,624.79/x
  3. Step 3: Cross multiply
    805,185.65x = 1,111,170 × 442,624.79
  4. Step 4: Simplify right side
    805,185.65x = 491,831,382,348.45
  5. Step 5: Solve for x
    x = 491,831,382,348.45/805,185.65
  6. Step 6: Final answer
    x = 610,829.79

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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.