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Finding the Fourth Proportional to 621,601.68, 932,539.08 and 369,112.80

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Solution

The fourth proportional to 621,601.68, 932,539.08 and 369,112.80 is: 553,750.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,601.68 : 932,539.08 = 369,112.80 : x
  2. Step 2: Convert to fraction form
    621,601.68/932,539.08 = 369,112.80/x
  3. Step 3: Cross multiply
    621,601.68x = 932,539.08 × 369,112.80
  4. Step 4: Simplify right side
    621,601.68x = 344,212,110,928.22
  5. Step 5: Solve for x
    x = 344,212,110,928.22/621,601.68
  6. Step 6: Final answer
    x = 553,750.29

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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.