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Finding the Fourth Proportional to 524,187.20, 786,280.80 and 335,230.40

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Solution

The fourth proportional to 524,187.20, 786,280.80 and 335,230.40 is: 502,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,187.20 : 786,280.80 = 335,230.40 : x
  2. Step 2: Convert to fraction form
    524,187.20/786,280.80 = 335,230.40/x
  3. Step 3: Cross multiply
    524,187.20x = 786,280.80 × 335,230.40
  4. Step 4: Simplify right side
    524,187.20x = 263,585,227,096.32
  5. Step 5: Solve for x
    x = 263,585,227,096.32/524,187.20
  6. Step 6: Final answer
    x = 502,845.60

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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.