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Finding the Fourth Proportional to 668,077.66, 921,948.41 and 362,153.10

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Solution

The fourth proportional to 668,077.66, 921,948.41 and 362,153.10 is: 499,771.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,077.66 : 921,948.41 = 362,153.10 : x
  2. Step 2: Convert to fraction form
    668,077.66/921,948.41 = 362,153.10/x
  3. Step 3: Cross multiply
    668,077.66x = 921,948.41 × 362,153.10
  4. Step 4: Simplify right side
    668,077.66x = 333,886,474,721.57
  5. Step 5: Solve for x
    x = 333,886,474,721.57/668,077.66
  6. Step 6: Final answer
    x = 499,771.95

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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.