Home / 447,139.19-617,053.70-243,190.10

Finding the Fourth Proportional to 447,139.19, 617,053.70 and 243,190.10

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Solution

The fourth proportional to 447,139.19, 617,053.70 and 243,190.10 is: 335,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,139.19 : 617,053.70 = 243,190.10 : x
  2. Step 2: Convert to fraction form
    447,139.19/617,053.70 = 243,190.10/x
  3. Step 3: Cross multiply
    447,139.19x = 617,053.70 × 243,190.10
  4. Step 4: Simplify right side
    447,139.19x = 150,061,351,008.37
  5. Step 5: Solve for x
    x = 150,061,351,008.37/447,139.19
  6. Step 6: Final answer
    x = 335,603.22

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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.