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Finding the Fourth Proportional to 348,036.40, 486,201.20 and 348,036.40

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Solution

The fourth proportional to 348,036.40, 486,201.20 and 348,036.40 is: 486,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,036.40 : 486,201.20 = 348,036.40 : x
  2. Step 2: Convert to fraction form
    348,036.40/486,201.20 = 348,036.40/x
  3. Step 3: Cross multiply
    348,036.40x = 486,201.20 × 348,036.40
  4. Step 4: Simplify right side
    348,036.40x = 169,215,715,323.68
  5. Step 5: Solve for x
    x = 169,215,715,323.68/348,036.40
  6. Step 6: Final answer
    x = 486,201.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.