Home / 891,279.35-1,230,122.70-528,902.97

Finding the Fourth Proportional to 891,279.35, 1,230,122.70 and 528,902.97

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Solution

The fourth proportional to 891,279.35, 1,230,122.70 and 528,902.97 is: 729,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,279.35 : 1,230,122.70 = 528,902.97 : x
  2. Step 2: Convert to fraction form
    891,279.35/1,230,122.70 = 528,902.97/x
  3. Step 3: Cross multiply
    891,279.35x = 1,230,122.70 × 528,902.97
  4. Step 4: Simplify right side
    891,279.35x = 650,615,544,881.46
  5. Step 5: Solve for x
    x = 650,615,544,881.46/891,279.35
  6. Step 6: Final answer
    x = 729,979.38

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Double scale
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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.