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Finding the Fourth Proportional to 677,186.50, 934,527.90 and 371,290.82

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Solution

The fourth proportional to 677,186.50, 934,527.90 and 371,290.82 is: 512,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,186.50 : 934,527.90 = 371,290.82 : x
  2. Step 2: Convert to fraction form
    677,186.50/934,527.90 = 371,290.82/x
  3. Step 3: Cross multiply
    677,186.50x = 934,527.90 × 371,290.82
  4. Step 4: Simplify right side
    677,186.50x = 346,981,630,303.88
  5. Step 5: Solve for x
    x = 346,981,630,303.88/677,186.50
  6. Step 6: Final answer
    x = 512,387.11

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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.