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Finding the Fourth Proportional to 626,603.14, 864,713.37 and 340,123.15

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Solution

The fourth proportional to 626,603.14, 864,713.37 and 340,123.15 is: 469,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,603.14 : 864,713.37 = 340,123.15 : x
  2. Step 2: Convert to fraction form
    626,603.14/864,713.37 = 340,123.15/x
  3. Step 3: Cross multiply
    626,603.14x = 864,713.37 × 340,123.15
  4. Step 4: Simplify right side
    626,603.14x = 294,109,035,251.52
  5. Step 5: Solve for x
    x = 294,109,035,251.52/626,603.14
  6. Step 6: Final answer
    x = 469,370.51

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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.