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Finding the Fourth Proportional to 472,410.40, 663,240.80 and 472,410.40

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Solution

The fourth proportional to 472,410.40, 663,240.80 and 472,410.40 is: 663,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,410.40 : 663,240.80 = 472,410.40 : x
  2. Step 2: Convert to fraction form
    472,410.40/663,240.80 = 472,410.40/x
  3. Step 3: Cross multiply
    472,410.40x = 663,240.80 × 472,410.40
  4. Step 4: Simplify right side
    472,410.40x = 313,321,851,624.32
  5. Step 5: Solve for x
    x = 313,321,851,624.32/472,410.40
  6. Step 6: Final answer
    x = 663,240.80

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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.