Home / 724,287.06-999,508.59-401,999.94

Finding the Fourth Proportional to 724,287.06, 999,508.59 and 401,999.94

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Solution

The fourth proportional to 724,287.06, 999,508.59 and 401,999.94 is: 554,755.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,287.06 : 999,508.59 = 401,999.94 : x
  2. Step 2: Convert to fraction form
    724,287.06/999,508.59 = 401,999.94/x
  3. Step 3: Cross multiply
    724,287.06x = 999,508.59 × 401,999.94
  4. Step 4: Simplify right side
    724,287.06x = 401,802,393,209.49
  5. Step 5: Solve for x
    x = 401,802,393,209.49/724,287.06
  6. Step 6: Final answer
    x = 554,755.73

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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.