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Finding the Fourth Proportional to 492,055.70, 738,083.55 and 243,223.70

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Solution

The fourth proportional to 492,055.70, 738,083.55 and 243,223.70 is: 364,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,055.70 : 738,083.55 = 243,223.70 : x
  2. Step 2: Convert to fraction form
    492,055.70/738,083.55 = 243,223.70/x
  3. Step 3: Cross multiply
    492,055.70x = 738,083.55 × 243,223.70
  4. Step 4: Simplify right side
    492,055.70x = 179,519,411,940.14
  5. Step 5: Solve for x
    x = 179,519,411,940.14/492,055.70
  6. Step 6: Final answer
    x = 364,835.55

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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.