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Finding the Fourth Proportional to 626,327.20, 864,555.66 and 371,678.32

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Solution

The fourth proportional to 626,327.20, 864,555.66 and 371,678.32 is: 513,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,327.20 : 864,555.66 = 371,678.32 : x
  2. Step 2: Convert to fraction form
    626,327.20/864,555.66 = 371,678.32/x
  3. Step 3: Cross multiply
    626,327.20x = 864,555.66 × 371,678.32
  4. Step 4: Simplify right side
    626,327.20x = 321,336,595,255.29
  5. Step 5: Solve for x
    x = 321,336,595,255.29/626,327.20
  6. Step 6: Final answer
    x = 513,049.08

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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.