Home / 865,486.47-1,194,308.75-478,297.25

Finding the Fourth Proportional to 865,486.47, 1,194,308.75 and 478,297.25

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Solution

The fourth proportional to 865,486.47, 1,194,308.75 and 478,297.25 is: 660,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,486.47 : 1,194,308.75 = 478,297.25 : x
  2. Step 2: Convert to fraction form
    865,486.47/1,194,308.75 = 478,297.25/x
  3. Step 3: Cross multiply
    865,486.47x = 1,194,308.75 × 478,297.25
  4. Step 4: Simplify right side
    865,486.47x = 571,234,597,196.78
  5. Step 5: Solve for x
    x = 571,234,597,196.78/865,486.47
  6. Step 6: Final answer
    x = 660,015.63

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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.