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Finding the Fourth Proportional to 668,605.17, 922,671.16 and 362,682.15

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Solution

The fourth proportional to 668,605.17, 922,671.16 and 362,682.15 is: 500,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,605.17 : 922,671.16 = 362,682.15 : x
  2. Step 2: Convert to fraction form
    668,605.17/922,671.16 = 362,682.15/x
  3. Step 3: Cross multiply
    668,605.17x = 922,671.16 × 362,682.15
  4. Step 4: Simplify right side
    668,605.17x = 334,636,360,051.79
  5. Step 5: Solve for x
    x = 334,636,360,051.79/668,605.17
  6. Step 6: Final answer
    x = 500,499.21

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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.