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Finding the Fourth Proportional to 618,799.14, 853,944.80 and 343,176.77

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Solution

The fourth proportional to 618,799.14, 853,944.80 and 343,176.77 is: 473,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,799.14 : 853,944.80 = 343,176.77 : x
  2. Step 2: Convert to fraction form
    618,799.14/853,944.80 = 343,176.77/x
  3. Step 3: Cross multiply
    618,799.14x = 853,944.80 × 343,176.77
  4. Step 4: Simplify right side
    618,799.14x = 293,054,016,733.39
  5. Step 5: Solve for x
    x = 293,054,016,733.39/618,799.14
  6. Step 6: Final answer
    x = 473,585.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.