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Finding the Fourth Proportional to 528,099.10, 792,148.65 and 191,301.10

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Solution

The fourth proportional to 528,099.10, 792,148.65 and 191,301.10 is: 286,951.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.10 : 792,148.65 = 191,301.10 : x
  2. Step 2: Convert to fraction form
    528,099.10/792,148.65 = 191,301.10/x
  3. Step 3: Cross multiply
    528,099.10x = 792,148.65 × 191,301.10
  4. Step 4: Simplify right side
    528,099.10x = 151,538,908,108.52
  5. Step 5: Solve for x
    x = 151,538,908,108.52/528,099.10
  6. Step 6: Final answer
    x = 286,951.65

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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.