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Finding the Fourth Proportional to 525,626.78, 785,560.39 and 383,771.14

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Solution

The fourth proportional to 525,626.78, 785,560.39 and 383,771.14 is: 573,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,626.78 : 785,560.39 = 383,771.14 : x
  2. Step 2: Convert to fraction form
    525,626.78/785,560.39 = 383,771.14/x
  3. Step 3: Cross multiply
    525,626.78x = 785,560.39 × 383,771.14
  4. Step 4: Simplify right side
    525,626.78x = 301,475,406,409.15
  5. Step 5: Solve for x
    x = 301,475,406,409.15/525,626.78
  6. Step 6: Final answer
    x = 573,554.12

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.