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Finding the Fourth Proportional to 489,072.30, 733,608.45 and 370,974.30

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Solution

The fourth proportional to 489,072.30, 733,608.45 and 370,974.30 is: 556,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,072.30 : 733,608.45 = 370,974.30 : x
  2. Step 2: Convert to fraction form
    489,072.30/733,608.45 = 370,974.30/x
  3. Step 3: Cross multiply
    489,072.30x = 733,608.45 × 370,974.30
  4. Step 4: Simplify right side
    489,072.30x = 272,149,881,212.84
  5. Step 5: Solve for x
    x = 272,149,881,212.84/489,072.30
  6. Step 6: Final answer
    x = 556,461.45

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Double scale
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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.