Home / 818,566.40-1,228,016.28-345,253.52

Finding the Fourth Proportional to 818,566.40, 1,228,016.28 and 345,253.52

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Solution

The fourth proportional to 818,566.40, 1,228,016.28 and 345,253.52 is: 517,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,566.40 : 1,228,016.28 = 345,253.52 : x
  2. Step 2: Convert to fraction form
    818,566.40/1,228,016.28 = 345,253.52/x
  3. Step 3: Cross multiply
    818,566.40x = 1,228,016.28 × 345,253.52
  4. Step 4: Simplify right side
    818,566.40x = 423,976,943,287.31
  5. Step 5: Solve for x
    x = 423,976,943,287.31/818,566.40
  6. Step 6: Final answer
    x = 517,950.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.