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Finding the Fourth Proportional to 657,536.40, 986,304.60 and 376,822.80

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Solution

The fourth proportional to 657,536.40, 986,304.60 and 376,822.80 is: 565,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,536.40 : 986,304.60 = 376,822.80 : x
  2. Step 2: Convert to fraction form
    657,536.40/986,304.60 = 376,822.80/x
  3. Step 3: Cross multiply
    657,536.40x = 986,304.60 × 376,822.80
  4. Step 4: Simplify right side
    657,536.40x = 371,662,061,024.88
  5. Step 5: Solve for x
    x = 371,662,061,024.88/657,536.40
  6. Step 6: Final answer
    x = 565,234.20

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Similar ratio
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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.