Home / 881,280.76-1,216,168.66-499,333.32

Finding the Fourth Proportional to 881,280.76, 1,216,168.66 and 499,333.32

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Solution

The fourth proportional to 881,280.76, 1,216,168.66 and 499,333.32 is: 689,080.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,280.76 : 1,216,168.66 = 499,333.32 : x
  2. Step 2: Convert to fraction form
    881,280.76/1,216,168.66 = 499,333.32/x
  3. Step 3: Cross multiply
    881,280.76x = 1,216,168.66 × 499,333.32
  4. Step 4: Simplify right side
    881,280.76x = 607,273,534,677.75
  5. Step 5: Solve for x
    x = 607,273,534,677.75/881,280.76
  6. Step 6: Final answer
    x = 689,080.67

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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.