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Finding the Fourth Proportional to 404,611.10, 606,916.65 and 255,020.30

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Solution

The fourth proportional to 404,611.10, 606,916.65 and 255,020.30 is: 382,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,611.10 : 606,916.65 = 255,020.30 : x
  2. Step 2: Convert to fraction form
    404,611.10/606,916.65 = 255,020.30/x
  3. Step 3: Cross multiply
    404,611.10x = 606,916.65 × 255,020.30
  4. Step 4: Simplify right side
    404,611.10x = 154,776,066,158.00
  5. Step 5: Solve for x
    x = 154,776,066,158.00/404,611.10
  6. Step 6: Final answer
    x = 382,530.45

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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.