Home / 865,608.18-1,194,601.13-478,415.27

Finding the Fourth Proportional to 865,608.18, 1,194,601.13 and 478,415.27

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Solution

The fourth proportional to 865,608.18, 1,194,601.13 and 478,415.27 is: 660,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,608.18 : 1,194,601.13 = 478,415.27 : x
  2. Step 2: Convert to fraction form
    865,608.18/1,194,601.13 = 478,415.27/x
  3. Step 3: Cross multiply
    865,608.18x = 1,194,601.13 × 478,415.27
  4. Step 4: Simplify right side
    865,608.18x = 571,515,417,820.11
  5. Step 5: Solve for x
    x = 571,515,417,820.11/865,608.18
  6. Step 6: Final answer
    x = 660,247.25

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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.