Home / 715,189.70-987,836.01-534,703.88

Finding the Fourth Proportional to 715,189.70, 987,836.01 and 534,703.88

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Solution

The fourth proportional to 715,189.70, 987,836.01 and 534,703.88 is: 738,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,189.70 : 987,836.01 = 534,703.88 : x
  2. Step 2: Convert to fraction form
    715,189.70/987,836.01 = 534,703.88/x
  3. Step 3: Cross multiply
    715,189.70x = 987,836.01 × 534,703.88
  4. Step 4: Simplify right side
    715,189.70x = 528,199,747,815.17
  5. Step 5: Solve for x
    x = 528,199,747,815.17/715,189.70
  6. Step 6: Final answer
    x = 738,544.96

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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.