Home / 805,185.40-1,111,169.65-442,624.54

Finding the Fourth Proportional to 805,185.40, 1,111,169.65 and 442,624.54

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Solution

The fourth proportional to 805,185.40, 1,111,169.65 and 442,624.54 is: 610,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,185.40 : 1,111,169.65 = 442,624.54 : x
  2. Step 2: Convert to fraction form
    805,185.40/1,111,169.65 = 442,624.54/x
  3. Step 3: Cross multiply
    805,185.40x = 1,111,169.65 × 442,624.54
  4. Step 4: Simplify right side
    805,185.40x = 491,830,949,637.36
  5. Step 5: Solve for x
    x = 491,830,949,637.36/805,185.40
  6. Step 6: Final answer
    x = 610,829.45

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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.