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Finding the Fourth Proportional to 367,329.40, 550,994.10 and 260,020.60

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Solution

The fourth proportional to 367,329.40, 550,994.10 and 260,020.60 is: 390,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,329.40 : 550,994.10 = 260,020.60 : x
  2. Step 2: Convert to fraction form
    367,329.40/550,994.10 = 260,020.60/x
  3. Step 3: Cross multiply
    367,329.40x = 550,994.10 × 260,020.60
  4. Step 4: Simplify right side
    367,329.40x = 143,269,816,478.46
  5. Step 5: Solve for x
    x = 143,269,816,478.46/367,329.40
  6. Step 6: Final answer
    x = 390,030.90

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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.