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Finding the Fourth Proportional to 668,604.17, 922,669.79 and 362,681.15

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Solution

The fourth proportional to 668,604.17, 922,669.79 and 362,681.15 is: 500,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,604.17 : 922,669.79 = 362,681.15 : x
  2. Step 2: Convert to fraction form
    668,604.17/922,669.79 = 362,681.15/x
  3. Step 3: Cross multiply
    668,604.17x = 922,669.79 × 362,681.15
  4. Step 4: Simplify right side
    668,604.17x = 334,634,934,080.70
  5. Step 5: Solve for x
    x = 334,634,934,080.70/668,604.17
  6. Step 6: Final answer
    x = 500,497.82

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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.