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Finding the Fourth Proportional to 657,726.80, 986,590.20 and 598,629.20

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Solution

The fourth proportional to 657,726.80, 986,590.20 and 598,629.20 is: 897,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,726.80 : 986,590.20 = 598,629.20 : x
  2. Step 2: Convert to fraction form
    657,726.80/986,590.20 = 598,629.20/x
  3. Step 3: Cross multiply
    657,726.80x = 986,590.20 × 598,629.20
  4. Step 4: Simplify right side
    657,726.80x = 590,601,702,153.84
  5. Step 5: Solve for x
    x = 590,601,702,153.84/657,726.80
  6. Step 6: Final answer
    x = 897,943.80

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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.