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Finding the Fourth Proportional to 606,766.40, 910,840.80 and 357,588.80

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Solution

The fourth proportional to 606,766.40, 910,840.80 and 357,588.80 is: 536,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,766.40 : 910,840.80 = 357,588.80 : x
  2. Step 2: Convert to fraction form
    606,766.40/910,840.80 = 357,588.80/x
  3. Step 3: Cross multiply
    606,766.40x = 910,840.80 × 357,588.80
  4. Step 4: Simplify right side
    606,766.40x = 325,706,468,663.04
  5. Step 5: Solve for x
    x = 325,706,468,663.04/606,766.40
  6. Step 6: Final answer
    x = 536,790.55

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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.