Home / 447,046.08-617,011.20-256,187.40

Finding the Fourth Proportional to 447,046.08, 617,011.20 and 256,187.40

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Solution

The fourth proportional to 447,046.08, 617,011.20 and 256,187.40 is: 353,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,046.08 : 617,011.20 = 256,187.40 : x
  2. Step 2: Convert to fraction form
    447,046.08/617,011.20 = 256,187.40/x
  3. Step 3: Cross multiply
    447,046.08x = 617,011.20 × 256,187.40
  4. Step 4: Simplify right side
    447,046.08x = 158,070,495,098.88
  5. Step 5: Solve for x
    x = 158,070,495,098.88/447,046.08
  6. Step 6: Final answer
    x = 353,588.82

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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.