Home / 643,362.77-965,051.08-194,087.53

Finding the Fourth Proportional to 643,362.77, 965,051.08 and 194,087.53

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Solution

The fourth proportional to 643,362.77, 965,051.08 and 194,087.53 is: 291,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,362.77 : 965,051.08 = 194,087.53 : x
  2. Step 2: Convert to fraction form
    643,362.77/965,051.08 = 194,087.53/x
  3. Step 3: Cross multiply
    643,362.77x = 965,051.08 × 194,087.53
  4. Step 4: Simplify right side
    643,362.77x = 187,304,377,543.19
  5. Step 5: Solve for x
    x = 187,304,377,543.19/643,362.77
  6. Step 6: Final answer
    x = 291,133.38

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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.