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Finding the Fourth Proportional to 506,832.60, 699,430.84 and 274,259.54

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Solution

The fourth proportional to 506,832.60, 699,430.84 and 274,259.54 is: 378,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,832.60 : 699,430.84 = 274,259.54 : x
  2. Step 2: Convert to fraction form
    506,832.60/699,430.84 = 274,259.54/x
  3. Step 3: Cross multiply
    506,832.60x = 699,430.84 × 274,259.54
  4. Step 4: Simplify right side
    506,832.60x = 191,825,578,153.82
  5. Step 5: Solve for x
    x = 191,825,578,153.82/506,832.60
  6. Step 6: Final answer
    x = 378,479.16

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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.