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Finding the Fourth Proportional to 608,129.45, 839,079.39 and 363,066.51

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Solution

The fourth proportional to 608,129.45, 839,079.39 and 363,066.51 is: 500,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,129.45 : 839,079.39 = 363,066.51 : x
  2. Step 2: Convert to fraction form
    608,129.45/839,079.39 = 363,066.51/x
  3. Step 3: Cross multiply
    608,129.45x = 839,079.39 × 363,066.51
  4. Step 4: Simplify right side
    608,129.45x = 304,641,625,740.23
  5. Step 5: Solve for x
    x = 304,641,625,740.23/608,129.45
  6. Step 6: Final answer
    x = 500,948.65

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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.