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Finding the Fourth Proportional to 668,697.06, 922,783.92 and 406,954.20

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Solution

The fourth proportional to 668,697.06, 922,783.92 and 406,954.20 is: 561,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,697.06 : 922,783.92 = 406,954.20 : x
  2. Step 2: Convert to fraction form
    668,697.06/922,783.92 = 406,954.20/x
  3. Step 3: Cross multiply
    668,697.06x = 922,783.92 × 406,954.20
  4. Step 4: Simplify right side
    668,697.06x = 375,530,791,936.46
  5. Step 5: Solve for x
    x = 375,530,791,936.46/668,697.06
  6. Step 6: Final answer
    x = 561,585.83

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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.