Home / 859,278.97-1,185,673.10-496,632.45

Finding the Fourth Proportional to 859,278.97, 1,185,673.10 and 496,632.45

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Solution

The fourth proportional to 859,278.97, 1,185,673.10 and 496,632.45 is: 685,276.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,278.97 : 1,185,673.10 = 496,632.45 : x
  2. Step 2: Convert to fraction form
    859,278.97/1,185,673.10 = 496,632.45/x
  3. Step 3: Cross multiply
    859,278.97x = 1,185,673.10 × 496,632.45
  4. Step 4: Simplify right side
    859,278.97x = 588,843,736,552.10
  5. Step 5: Solve for x
    x = 588,843,736,552.10/859,278.97
  6. Step 6: Final answer
    x = 685,276.56

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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.