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Finding the Fourth Proportional to 406,358.40, 608,371.20 and 248,894.40

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Solution

The fourth proportional to 406,358.40, 608,371.20 and 248,894.40 is: 372,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,358.40 : 608,371.20 = 248,894.40 : x
  2. Step 2: Convert to fraction form
    406,358.40/608,371.20 = 248,894.40/x
  3. Step 3: Cross multiply
    406,358.40x = 608,371.20 × 248,894.40
  4. Step 4: Simplify right side
    406,358.40x = 151,420,184,801.28
  5. Step 5: Solve for x
    x = 151,420,184,801.28/406,358.40
  6. Step 6: Final answer
    x = 372,627.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.