Home / 689,278.32-1,033,918.02-216,000.54

Finding the Fourth Proportional to 689,278.32, 1,033,918.02 and 216,000.54

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Solution

The fourth proportional to 689,278.32, 1,033,918.02 and 216,000.54 is: 324,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,278.32 : 1,033,918.02 = 216,000.54 : x
  2. Step 2: Convert to fraction form
    689,278.32/1,033,918.02 = 216,000.54/x
  3. Step 3: Cross multiply
    689,278.32x = 1,033,918.02 × 216,000.54
  4. Step 4: Simplify right side
    689,278.32x = 223,326,850,635.73
  5. Step 5: Solve for x
    x = 223,326,850,635.73/689,278.32
  6. Step 6: Final answer
    x = 324,000.98

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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.