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Finding the Fourth Proportional to 865,608.07, 1,194,600.99 and 478,415.16

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Solution

The fourth proportional to 865,608.07, 1,194,600.99 and 478,415.16 is: 660,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,608.07 : 1,194,600.99 = 478,415.16 : x
  2. Step 2: Convert to fraction form
    865,608.07/1,194,600.99 = 478,415.16/x
  3. Step 3: Cross multiply
    865,608.07x = 1,194,600.99 × 478,415.16
  4. Step 4: Simplify right side
    865,608.07x = 571,515,221,524.44
  5. Step 5: Solve for x
    x = 571,515,221,524.44/865,608.07
  6. Step 6: Final answer
    x = 660,247.10

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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.