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Finding the Fourth Proportional to 576,770.40, 864,637.20 and 377,186.40

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Solution

The fourth proportional to 576,770.40, 864,637.20 and 377,186.40 is: 565,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,770.40 : 864,637.20 = 377,186.40 : x
  2. Step 2: Convert to fraction form
    576,770.40/864,637.20 = 377,186.40/x
  3. Step 3: Cross multiply
    576,770.40x = 864,637.20 × 377,186.40
  4. Step 4: Simplify right side
    576,770.40x = 326,129,392,774.08
  5. Step 5: Solve for x
    x = 326,129,392,774.08/576,770.40
  6. Step 6: Final answer
    x = 565,440.59

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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.