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Finding the Fourth Proportional to 290,104.40, 435,156.60 and 183,816.20

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Solution

The fourth proportional to 290,104.40, 435,156.60 and 183,816.20 is: 275,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,104.40 : 435,156.60 = 183,816.20 : x
  2. Step 2: Convert to fraction form
    290,104.40/435,156.60 = 183,816.20/x
  3. Step 3: Cross multiply
    290,104.40x = 435,156.60 × 183,816.20
  4. Step 4: Simplify right side
    290,104.40x = 79,988,832,616.92
  5. Step 5: Solve for x
    x = 79,988,832,616.92/290,104.40
  6. Step 6: Final answer
    x = 275,724.30

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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.