Home / 643,280.55-964,919.67-194,001.08

Finding the Fourth Proportional to 643,280.55, 964,919.67 and 194,001.08

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Solution

The fourth proportional to 643,280.55, 964,919.67 and 194,001.08 is: 291,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,280.55 : 964,919.67 = 194,001.08 : x
  2. Step 2: Convert to fraction form
    643,280.55/964,919.67 = 194,001.08/x
  3. Step 3: Cross multiply
    643,280.55x = 964,919.67 × 194,001.08
  4. Step 4: Simplify right side
    643,280.55x = 187,195,461,233.05
  5. Step 5: Solve for x
    x = 187,195,461,233.05/643,280.55
  6. Step 6: Final answer
    x = 291,001.27

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1.5x scale

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.