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Finding the Fourth Proportional to 528,063.10, 792,094.65 and 318,111.10

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Solution

The fourth proportional to 528,063.10, 792,094.65 and 318,111.10 is: 477,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063.10 : 792,094.65 = 318,111.10 : x
  2. Step 2: Convert to fraction form
    528,063.10/792,094.65 = 318,111.10/x
  3. Step 3: Cross multiply
    528,063.10x = 792,094.65 × 318,111.10
  4. Step 4: Simplify right side
    528,063.10x = 251,974,100,415.62
  5. Step 5: Solve for x
    x = 251,974,100,415.62/528,063.10
  6. Step 6: Final answer
    x = 477,166.65

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Similar ratio
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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.