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Finding the Fourth Proportional to 355,256.20, 532,884.30 and 189,368.20

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Solution

The fourth proportional to 355,256.20, 532,884.30 and 189,368.20 is: 284,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,256.20 : 532,884.30 = 189,368.20 : x
  2. Step 2: Convert to fraction form
    355,256.20/532,884.30 = 189,368.20/x
  3. Step 3: Cross multiply
    355,256.20x = 532,884.30 × 189,368.20
  4. Step 4: Simplify right side
    355,256.20x = 100,911,340,699.26
  5. Step 5: Solve for x
    x = 100,911,340,699.26/355,256.20
  6. Step 6: Final answer
    x = 284,052.30

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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.