Home / 1,223,251.20-1,688,109.12-679,437.44

Finding the Fourth Proportional to 1,223,251.20, 1,688,109.12 and 679,437.44

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Solution

The fourth proportional to 1,223,251.20, 1,688,109.12 and 679,437.44 is: 937,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,251.20 : 1,688,109.12 = 679,437.44 : x
  2. Step 2: Convert to fraction form
    1,223,251.20/1,688,109.12 = 679,437.44/x
  3. Step 3: Cross multiply
    1,223,251.20x = 1,688,109.12 × 679,437.44
  4. Step 4: Simplify right side
    1,223,251.20x = 1,146,964,538,933.45
  5. Step 5: Solve for x
    x = 1,146,964,538,933.45/1,223,251.20
  6. Step 6: Final answer
    x = 937,636.14

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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.