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Finding the Fourth Proportional to 535,427.74, 738,910.74 and 293,720.50

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Solution

The fourth proportional to 535,427.74, 738,910.74 and 293,720.50 is: 405,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,427.74 : 738,910.74 = 293,720.50 : x
  2. Step 2: Convert to fraction form
    535,427.74/738,910.74 = 293,720.50/x
  3. Step 3: Cross multiply
    535,427.74x = 738,910.74 × 293,720.50
  4. Step 4: Simplify right side
    535,427.74x = 217,033,232,008.17
  5. Step 5: Solve for x
    x = 217,033,232,008.17/535,427.74
  6. Step 6: Final answer
    x = 405,345.51

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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.