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Finding the Fourth Proportional to 492,365.80, 738,548.70 and 404,885.80

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Solution

The fourth proportional to 492,365.80, 738,548.70 and 404,885.80 is: 607,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,365.80 : 738,548.70 = 404,885.80 : x
  2. Step 2: Convert to fraction form
    492,365.80/738,548.70 = 404,885.80/x
  3. Step 3: Cross multiply
    492,365.80x = 738,548.70 × 404,885.80
  4. Step 4: Simplify right side
    492,365.80x = 299,027,881,238.46
  5. Step 5: Solve for x
    x = 299,027,881,238.46/492,365.80
  6. Step 6: Final answer
    x = 607,328.70

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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.