Home / 881,283.76-1,216,072.88-499,228.72

Finding the Fourth Proportional to 881,283.76, 1,216,072.88 and 499,228.72

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Solution

The fourth proportional to 881,283.76, 1,216,072.88 and 499,228.72 is: 688,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,283.76 : 1,216,072.88 = 499,228.72 : x
  2. Step 2: Convert to fraction form
    881,283.76/1,216,072.88 = 499,228.72/x
  3. Step 3: Cross multiply
    881,283.76x = 1,216,072.88 × 499,228.72
  4. Step 4: Simplify right side
    881,283.76x = 607,098,507,309.11
  5. Step 5: Solve for x
    x = 607,098,507,309.11/881,283.76
  6. Step 6: Final answer
    x = 688,879.72

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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.