Home / 463,709.19-643,192.57-451,418.25

Finding the Fourth Proportional to 463,709.19, 643,192.57 and 451,418.25

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Solution

The fourth proportional to 463,709.19, 643,192.57 and 451,418.25 is: 626,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,709.19 : 643,192.57 = 451,418.25 : x
  2. Step 2: Convert to fraction form
    463,709.19/643,192.57 = 451,418.25/x
  3. Step 3: Cross multiply
    463,709.19x = 643,192.57 × 451,418.25
  4. Step 4: Simplify right side
    463,709.19x = 290,348,864,362.40
  5. Step 5: Solve for x
    x = 290,348,864,362.40/463,709.19
  6. Step 6: Final answer
    x = 626,144.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.