Home / 639,821.80-958,350.30-529,229.80

Finding the Fourth Proportional to 639,821.80, 958,350.30 and 529,229.80

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Solution

The fourth proportional to 639,821.80, 958,350.30 and 529,229.80 is: 792,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,821.80 : 958,350.30 = 529,229.80 : x
  2. Step 2: Convert to fraction form
    639,821.80/958,350.30 = 529,229.80/x
  3. Step 3: Cross multiply
    639,821.80x = 958,350.30 × 529,229.80
  4. Step 4: Simplify right side
    639,821.80x = 507,187,537,598.94
  5. Step 5: Solve for x
    x = 507,187,537,598.94/639,821.80
  6. Step 6: Final answer
    x = 792,701.25

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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.