Home / 881,281.76-1,216,170.04-499,334.32

Finding the Fourth Proportional to 881,281.76, 1,216,170.04 and 499,334.32

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Solution

The fourth proportional to 881,281.76, 1,216,170.04 and 499,334.32 is: 689,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,281.76 : 1,216,170.04 = 499,334.32 : x
  2. Step 2: Convert to fraction form
    881,281.76/1,216,170.04 = 499,334.32/x
  3. Step 3: Cross multiply
    881,281.76x = 1,216,170.04 × 499,334.32
  4. Step 4: Simplify right side
    881,281.76x = 607,275,439,927.77
  5. Step 5: Solve for x
    x = 607,275,439,927.77/881,281.76
  6. Step 6: Final answer
    x = 689,082.05

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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.