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Finding the Fourth Proportional to 507,281.74, 760,562.21 and 254,379.79

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Solution

The fourth proportional to 507,281.74, 760,562.21 and 254,379.79 is: 381,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,281.74 : 760,562.21 = 254,379.79 : x
  2. Step 2: Convert to fraction form
    507,281.74/760,562.21 = 254,379.79/x
  3. Step 3: Cross multiply
    507,281.74x = 760,562.21 × 254,379.79
  4. Step 4: Simplify right side
    507,281.74x = 193,471,655,417.50
  5. Step 5: Solve for x
    x = 193,471,655,417.50/507,281.74
  6. Step 6: Final answer
    x = 381,388.96

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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.