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Finding the Fourth Proportional to 668,429.29, 922,426.14 and 362,512.42

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Solution

The fourth proportional to 668,429.29, 922,426.14 and 362,512.42 is: 500,263.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,429.29 : 922,426.14 = 362,512.42 : x
  2. Step 2: Convert to fraction form
    668,429.29/922,426.14 = 362,512.42/x
  3. Step 3: Cross multiply
    668,429.29x = 922,426.14 × 362,512.42
  4. Step 4: Simplify right side
    668,429.29x = 334,390,932,282.66
  5. Step 5: Solve for x
    x = 334,390,932,282.66/668,429.29
  6. Step 6: Final answer
    x = 500,263.73

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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.