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Finding the Fourth Proportional to 463,999.20, 695,998.80 and 328,696.80

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Solution

The fourth proportional to 463,999.20, 695,998.80 and 328,696.80 is: 493,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,999.20 : 695,998.80 = 328,696.80 : x
  2. Step 2: Convert to fraction form
    463,999.20/695,998.80 = 328,696.80/x
  3. Step 3: Cross multiply
    463,999.20x = 695,998.80 × 328,696.80
  4. Step 4: Simplify right side
    463,999.20x = 228,772,578,363.84
  5. Step 5: Solve for x
    x = 228,772,578,363.84/463,999.20
  6. Step 6: Final answer
    x = 493,045.20

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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.