Home / 641,381.85-885,094.44-354,902.13

Finding the Fourth Proportional to 641,381.85, 885,094.44 and 354,902.13

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Solution

The fourth proportional to 641,381.85, 885,094.44 and 354,902.13 is: 489,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,381.85 : 885,094.44 = 354,902.13 : x
  2. Step 2: Convert to fraction form
    641,381.85/885,094.44 = 354,902.13/x
  3. Step 3: Cross multiply
    641,381.85x = 885,094.44 × 354,902.13
  4. Step 4: Simplify right side
    641,381.85x = 314,121,902,007.16
  5. Step 5: Solve for x
    x = 314,121,902,007.16/641,381.85
  6. Step 6: Final answer
    x = 489,758.02

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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.