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Finding the Fourth Proportional to 528,089.10, 792,133.65 and 191,291.10

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Solution

The fourth proportional to 528,089.10, 792,133.65 and 191,291.10 is: 286,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,089.10 : 792,133.65 = 191,291.10 : x
  2. Step 2: Convert to fraction form
    528,089.10/792,133.65 = 191,291.10/x
  3. Step 3: Cross multiply
    528,089.10x = 792,133.65 × 191,291.10
  4. Step 4: Simplify right side
    528,089.10x = 151,528,117,255.52
  5. Step 5: Solve for x
    x = 151,528,117,255.52/528,089.10
  6. Step 6: Final answer
    x = 286,936.65

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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.