Home / 666,878.56-1,000,416.24-193,502.40

Finding the Fourth Proportional to 666,878.56, 1,000,416.24 and 193,502.40

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Solution

The fourth proportional to 666,878.56, 1,000,416.24 and 193,502.40 is: 290,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,878.56 : 1,000,416.24 = 193,502.40 : x
  2. Step 2: Convert to fraction form
    666,878.56/1,000,416.24 = 193,502.40/x
  3. Step 3: Cross multiply
    666,878.56x = 1,000,416.24 × 193,502.40
  4. Step 4: Simplify right side
    666,878.56x = 193,582,943,438.98
  5. Step 5: Solve for x
    x = 193,582,943,438.98/666,878.56
  6. Step 6: Final answer
    x = 290,282.15

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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.