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Finding the Fourth Proportional to 468,463.67, 646,479.72 and 253,603.57

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Solution

The fourth proportional to 468,463.67, 646,479.72 and 253,603.57 is: 349,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,463.67 : 646,479.72 = 253,603.57 : x
  2. Step 2: Convert to fraction form
    468,463.67/646,479.72 = 253,603.57/x
  3. Step 3: Cross multiply
    468,463.67x = 646,479.72 × 253,603.57
  4. Step 4: Simplify right side
    468,463.67x = 163,949,564,924.60
  5. Step 5: Solve for x
    x = 163,949,564,924.60/468,463.67
  6. Step 6: Final answer
    x = 349,972.85

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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.