Home / 865,923.03-1,194,938.47-478,713.80

Finding the Fourth Proportional to 865,923.03, 1,194,938.47 and 478,713.80

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Solution

The fourth proportional to 865,923.03, 1,194,938.47 and 478,713.80 is: 660,605.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,923.03 : 1,194,938.47 = 478,713.80 : x
  2. Step 2: Convert to fraction form
    865,923.03/1,194,938.47 = 478,713.80/x
  3. Step 3: Cross multiply
    865,923.03x = 1,194,938.47 × 478,713.80
  4. Step 4: Simplify right side
    865,923.03x = 572,033,535,739.89
  5. Step 5: Solve for x
    x = 572,033,535,739.89/865,923.03
  6. Step 6: Final answer
    x = 660,605.53

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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.