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Finding the Fourth Proportional to 507,395.16, 761,092.74 and 133,389

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Solution

The fourth proportional to 507,395.16, 761,092.74 and 133,389 is: 200,083.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,395.16 : 761,092.74 = 133,389 : x
  2. Step 2: Convert to fraction form
    507,395.16/761,092.74 = 133,389/x
  3. Step 3: Cross multiply
    507,395.16x = 761,092.74 × 133,389
  4. Step 4: Simplify right side
    507,395.16x = 101,521,399,495.86
  5. Step 5: Solve for x
    x = 101,521,399,495.86/507,395.16
  6. Step 6: Final answer
    x = 200,083.50

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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.