Home / 724,046.19-999,190.64-401,786.28

Finding the Fourth Proportional to 724,046.19, 999,190.64 and 401,786.28

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Solution

The fourth proportional to 724,046.19, 999,190.64 and 401,786.28 is: 554,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,046.19 : 999,190.64 = 401,786.28 : x
  2. Step 2: Convert to fraction form
    724,046.19/999,190.64 = 401,786.28/x
  3. Step 3: Cross multiply
    724,046.19x = 999,190.64 × 401,786.28
  4. Step 4: Simplify right side
    724,046.19x = 401,461,088,247.49
  5. Step 5: Solve for x
    x = 401,461,088,247.49/724,046.19
  6. Step 6: Final answer
    x = 554,468.89

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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.