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Finding the Fourth Proportional to 473,231.80, 708,465.30 and 423,465.40

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Solution

The fourth proportional to 473,231.80, 708,465.30 and 423,465.40 is: 633,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,231.80 : 708,465.30 = 423,465.40 : x
  2. Step 2: Convert to fraction form
    473,231.80/708,465.30 = 423,465.40/x
  3. Step 3: Cross multiply
    473,231.80x = 708,465.30 × 423,465.40
  4. Step 4: Simplify right side
    473,231.80x = 300,010,541,650.62
  5. Step 5: Solve for x
    x = 300,010,541,650.62/473,231.80
  6. Step 6: Final answer
    x = 633,961.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.