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Finding the Fourth Proportional to 528,098.70, 792,148.05 and 195,804.30

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Solution

The fourth proportional to 528,098.70, 792,148.05 and 195,804.30 is: 293,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,098.70 : 792,148.05 = 195,804.30 : x
  2. Step 2: Convert to fraction form
    528,098.70/792,148.05 = 195,804.30/x
  3. Step 3: Cross multiply
    528,098.70x = 792,148.05 × 195,804.30
  4. Step 4: Simplify right side
    528,098.70x = 155,105,994,426.62
  5. Step 5: Solve for x
    x = 155,105,994,426.62/528,098.70
  6. Step 6: Final answer
    x = 293,706.45

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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.