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Finding the Fourth Proportional to 618,105.74, 853,117.72 and 363,602.12

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Solution

The fourth proportional to 618,105.74, 853,117.72 and 363,602.12 is: 501,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,105.74 : 853,117.72 = 363,602.12 : x
  2. Step 2: Convert to fraction form
    618,105.74/853,117.72 = 363,602.12/x
  3. Step 3: Cross multiply
    618,105.74x = 853,117.72 × 363,602.12
  4. Step 4: Simplify right side
    618,105.74x = 310,195,406,426.97
  5. Step 5: Solve for x
    x = 310,195,406,426.97/618,105.74
  6. Step 6: Final answer
    x = 501,848.45

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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.