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Finding the Fourth Proportional to 528,097.10, 792,145.65 and 191,299.10

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Solution

The fourth proportional to 528,097.10, 792,145.65 and 191,299.10 is: 286,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,097.10 : 792,145.65 = 191,299.10 : x
  2. Step 2: Convert to fraction form
    528,097.10/792,145.65 = 191,299.10/x
  3. Step 3: Cross multiply
    528,097.10x = 792,145.65 × 191,299.10
  4. Step 4: Simplify right side
    528,097.10x = 151,536,749,913.92
  5. Step 5: Solve for x
    x = 151,536,749,913.92/528,097.10
  6. Step 6: Final answer
    x = 286,948.65

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Double scale
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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.