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Finding the Fourth Proportional to 668,355.48, 922,332.60 and 362,431.62

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Solution

The fourth proportional to 668,355.48, 922,332.60 and 362,431.62 is: 500,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,355.48 : 922,332.60 = 362,431.62 : x
  2. Step 2: Convert to fraction form
    668,355.48/922,332.60 = 362,431.62/x
  3. Step 3: Cross multiply
    668,355.48x = 922,332.60 × 362,431.62
  4. Step 4: Simplify right side
    668,355.48x = 334,282,498,396.81
  5. Step 5: Solve for x
    x = 334,282,498,396.81/668,355.48
  6. Step 6: Final answer
    x = 500,156.74

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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.