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Finding the Fourth Proportional to 681,875.04, 940,991.92 and 380,088.16

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Solution

The fourth proportional to 681,875.04, 940,991.92 and 380,088.16 is: 524,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,875.04 : 940,991.92 = 380,088.16 : x
  2. Step 2: Convert to fraction form
    681,875.04/940,991.92 = 380,088.16/x
  3. Step 3: Cross multiply
    681,875.04x = 940,991.92 × 380,088.16
  4. Step 4: Simplify right side
    681,875.04x = 357,659,887,447.67
  5. Step 5: Solve for x
    x = 357,659,887,447.67/681,875.04
  6. Step 6: Final answer
    x = 524,524.09

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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.