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Finding the Fourth Proportional to 539,920.85, 745,173.56 and 333,309.56

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Solution

The fourth proportional to 539,920.85, 745,173.56 and 333,309.56 is: 460,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,920.85 : 745,173.56 = 333,309.56 : x
  2. Step 2: Convert to fraction form
    539,920.85/745,173.56 = 333,309.56/x
  3. Step 3: Cross multiply
    539,920.85x = 745,173.56 × 333,309.56
  4. Step 4: Simplify right side
    539,920.85x = 248,373,471,407.23
  5. Step 5: Solve for x
    x = 248,373,471,407.23/539,920.85
  6. Step 6: Final answer
    x = 460,018.30

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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.