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Finding the Fourth Proportional to 335,718.40, 470,835.20 and 335,718.40

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Solution

The fourth proportional to 335,718.40, 470,835.20 and 335,718.40 is: 470,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,718.40 : 470,835.20 = 335,718.40 : x
  2. Step 2: Convert to fraction form
    335,718.40/470,835.20 = 335,718.40/x
  3. Step 3: Cross multiply
    335,718.40x = 470,835.20 × 335,718.40
  4. Step 4: Simplify right side
    335,718.40x = 158,068,040,007.68
  5. Step 5: Solve for x
    x = 158,068,040,007.68/335,718.40
  6. Step 6: Final answer
    x = 470,835.20

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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.