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Finding the Fourth Proportional to 372,616.70, 520,482.40 and 372,616.70

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Solution

The fourth proportional to 372,616.70, 520,482.40 and 372,616.70 is: 520,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,616.70 : 520,482.40 = 372,616.70 : x
  2. Step 2: Convert to fraction form
    372,616.70/520,482.40 = 372,616.70/x
  3. Step 3: Cross multiply
    372,616.70x = 520,482.40 × 372,616.70
  4. Step 4: Simplify right side
    372,616.70x = 193,940,434,296.08
  5. Step 5: Solve for x
    x = 193,940,434,296.08/372,616.70
  6. Step 6: Final answer
    x = 520,482.40

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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.