Home / 717,365.03-989,951.67-395,105.13

Finding the Fourth Proportional to 717,365.03, 989,951.67 and 395,105.13

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Solution

The fourth proportional to 717,365.03, 989,951.67 and 395,105.13 is: 545,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,365.03 : 989,951.67 = 395,105.13 : x
  2. Step 2: Convert to fraction form
    717,365.03/989,951.67 = 395,105.13/x
  3. Step 3: Cross multiply
    717,365.03x = 989,951.67 × 395,105.13
  4. Step 4: Simplify right side
    717,365.03x = 391,134,983,269.07
  5. Step 5: Solve for x
    x = 391,134,983,269.07/717,365.03
  6. Step 6: Final answer
    x = 545,238.43

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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.