Home / 885,433.70-1,221,591.84-498,186.74

Finding the Fourth Proportional to 885,433.70, 1,221,591.84 and 498,186.74

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Solution

The fourth proportional to 885,433.70, 1,221,591.84 and 498,186.74 is: 687,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,433.70 : 1,221,591.84 = 498,186.74 : x
  2. Step 2: Convert to fraction form
    885,433.70/1,221,591.84 = 498,186.74/x
  3. Step 3: Cross multiply
    885,433.70x = 1,221,591.84 × 498,186.74
  4. Step 4: Simplify right side
    885,433.70x = 608,580,856,380.20
  5. Step 5: Solve for x
    x = 608,580,856,380.20/885,433.70
  6. Step 6: Final answer
    x = 687,325.16

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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.