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Finding the Fourth Proportional to 657,752.80, 986,629.20 and 574,808.80

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Solution

The fourth proportional to 657,752.80, 986,629.20 and 574,808.80 is: 862,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,752.80 : 986,629.20 = 574,808.80 : x
  2. Step 2: Convert to fraction form
    657,752.80/986,629.20 = 574,808.80/x
  3. Step 3: Cross multiply
    657,752.80x = 986,629.20 × 574,808.80
  4. Step 4: Simplify right side
    657,752.80x = 567,123,146,496.96
  5. Step 5: Solve for x
    x = 567,123,146,496.96/657,752.80
  6. Step 6: Final answer
    x = 862,213.20

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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.