Home / 724,277.66-999,549.88-401,987.78

Finding the Fourth Proportional to 724,277.66, 999,549.88 and 401,987.78

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Solution

The fourth proportional to 724,277.66, 999,549.88 and 401,987.78 is: 554,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,277.66 : 999,549.88 = 401,987.78 : x
  2. Step 2: Convert to fraction form
    724,277.66/999,549.88 = 401,987.78/x
  3. Step 3: Cross multiply
    724,277.66x = 999,549.88 × 401,987.78
  4. Step 4: Simplify right side
    724,277.66x = 401,806,837,260.47
  5. Step 5: Solve for x
    x = 401,806,837,260.47/724,277.66
  6. Step 6: Final answer
    x = 554,769.06

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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.