Home / 865,817.78-1,194,836.06-478,626.94

Finding the Fourth Proportional to 865,817.78, 1,194,836.06 and 478,626.94

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Solution

The fourth proportional to 865,817.78, 1,194,836.06 and 478,626.94 is: 660,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,817.78 : 1,194,836.06 = 478,626.94 : x
  2. Step 2: Convert to fraction form
    865,817.78/1,194,836.06 = 478,626.94/x
  3. Step 3: Cross multiply
    865,817.78x = 1,194,836.06 × 478,626.94
  4. Step 4: Simplify right side
    865,817.78x = 571,880,725,408.93
  5. Step 5: Solve for x
    x = 571,880,725,408.93/865,817.78
  6. Step 6: Final answer
    x = 660,509.33

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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.