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Finding the Fourth Proportional to 655,937.34, 983,278.53 and 256,445.34

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Solution

The fourth proportional to 655,937.34, 983,278.53 and 256,445.34 is: 384,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,937.34 : 983,278.53 = 256,445.34 : x
  2. Step 2: Convert to fraction form
    655,937.34/983,278.53 = 256,445.34/x
  3. Step 3: Cross multiply
    655,937.34x = 983,278.53 × 256,445.34
  4. Step 4: Simplify right side
    655,937.34x = 252,157,196,940.55
  5. Step 5: Solve for x
    x = 252,157,196,940.55/655,937.34
  6. Step 6: Final answer
    x = 384,422.69

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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.