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Finding the Fourth Proportional to 528,046.10, 792,069.15 and 318,094.10

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Solution

The fourth proportional to 528,046.10, 792,069.15 and 318,094.10 is: 477,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,046.10 : 792,069.15 = 318,094.10 : x
  2. Step 2: Convert to fraction form
    528,046.10/792,069.15 = 318,094.10/x
  3. Step 3: Cross multiply
    528,046.10x = 792,069.15 × 318,094.10
  4. Step 4: Simplify right side
    528,046.10x = 251,952,523,407.02
  5. Step 5: Solve for x
    x = 251,952,523,407.02/528,046.10
  6. Step 6: Final answer
    x = 477,141.15

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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.