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Finding the Fourth Proportional to 605,726.60, 906,840.30 and 369,530.60

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Solution

The fourth proportional to 605,726.60, 906,840.30 and 369,530.60 is: 553,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,726.60 : 906,840.30 = 369,530.60 : x
  2. Step 2: Convert to fraction form
    605,726.60/906,840.30 = 369,530.60/x
  3. Step 3: Cross multiply
    605,726.60x = 906,840.30 × 369,530.60
  4. Step 4: Simplify right side
    605,726.60x = 335,105,240,163.18
  5. Step 5: Solve for x
    x = 335,105,240,163.18/605,726.60
  6. Step 6: Final answer
    x = 553,228.54

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1.5x scale

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.