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Finding the Fourth Proportional to 608,882.60, 913,323.90 and 328,946.60

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Solution

The fourth proportional to 608,882.60, 913,323.90 and 328,946.60 is: 493,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,882.60 : 913,323.90 = 328,946.60 : x
  2. Step 2: Convert to fraction form
    608,882.60/913,323.90 = 328,946.60/x
  3. Step 3: Cross multiply
    608,882.60x = 913,323.90 × 328,946.60
  4. Step 4: Simplify right side
    608,882.60x = 300,434,791,603.74
  5. Step 5: Solve for x
    x = 300,434,791,603.74/608,882.60
  6. Step 6: Final answer
    x = 493,419.90

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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.