Home / 501,647.08-692,257.38-275,286.76

Finding the Fourth Proportional to 501,647.08, 692,257.38 and 275,286.76

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Solution

The fourth proportional to 501,647.08, 692,257.38 and 275,286.76 is: 379,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,647.08 : 692,257.38 = 275,286.76 : x
  2. Step 2: Convert to fraction form
    501,647.08/692,257.38 = 275,286.76/x
  3. Step 3: Cross multiply
    501,647.08x = 692,257.38 × 275,286.76
  4. Step 4: Simplify right side
    501,647.08x = 190,569,291,226.29
  5. Step 5: Solve for x
    x = 190,569,291,226.29/501,647.08
  6. Step 6: Final answer
    x = 379,887.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.