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Finding the Fourth Proportional to 492,089.10, 738,133.65 and 314,796.30

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Solution

The fourth proportional to 492,089.10, 738,133.65 and 314,796.30 is: 472,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,089.10 : 738,133.65 = 314,796.30 : x
  2. Step 2: Convert to fraction form
    492,089.10/738,133.65 = 314,796.30/x
  3. Step 3: Cross multiply
    492,089.10x = 738,133.65 × 314,796.30
  4. Step 4: Simplify right side
    492,089.10x = 232,361,741,925.50
  5. Step 5: Solve for x
    x = 232,361,741,925.50/492,089.10
  6. Step 6: Final answer
    x = 472,194.45

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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.