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Finding the Fourth Proportional to 522,056.40, 783,084.60 and 433,486.80

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Solution

The fourth proportional to 522,056.40, 783,084.60 and 433,486.80 is: 650,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,056.40 : 783,084.60 = 433,486.80 : x
  2. Step 2: Convert to fraction form
    522,056.40/783,084.60 = 433,486.80/x
  3. Step 3: Cross multiply
    522,056.40x = 783,084.60 × 433,486.80
  4. Step 4: Simplify right side
    522,056.40x = 339,456,837,383.28
  5. Step 5: Solve for x
    x = 339,456,837,383.28/522,056.40
  6. Step 6: Final answer
    x = 650,230.20

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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.