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Finding the Fourth Proportional to 532,611.43, 735,019.70 and 290,905.40

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Solution

The fourth proportional to 532,611.43, 735,019.70 and 290,905.40 is: 401,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,611.43 : 735,019.70 = 290,905.40 : x
  2. Step 2: Convert to fraction form
    532,611.43/735,019.70 = 290,905.40/x
  3. Step 3: Cross multiply
    532,611.43x = 735,019.70 × 290,905.40
  4. Step 4: Simplify right side
    532,611.43x = 213,821,200,219.40
  5. Step 5: Solve for x
    x = 213,821,200,219.40/532,611.43
  6. Step 6: Final answer
    x = 401,458.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.