Home / 447,121.08-617,114.70-256,262.40

Finding the Fourth Proportional to 447,121.08, 617,114.70 and 256,262.40

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Solution

The fourth proportional to 447,121.08, 617,114.70 and 256,262.40 is: 353,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,121.08 : 617,114.70 = 256,262.40 : x
  2. Step 2: Convert to fraction form
    447,121.08/617,114.70 = 256,262.40/x
  3. Step 3: Cross multiply
    447,121.08x = 617,114.70 × 256,262.40
  4. Step 4: Simplify right side
    447,121.08x = 158,143,294,097.28
  5. Step 5: Solve for x
    x = 158,143,294,097.28/447,121.08
  6. Step 6: Final answer
    x = 353,692.32

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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.