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Finding the Fourth Proportional to 460,761.70, 635,857.47 and 256,806.94

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Solution

The fourth proportional to 460,761.70, 635,857.47 and 256,806.94 is: 354,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,761.70 : 635,857.47 = 256,806.94 : x
  2. Step 2: Convert to fraction form
    460,761.70/635,857.47 = 256,806.94/x
  3. Step 3: Cross multiply
    460,761.70x = 635,857.47 × 256,806.94
  4. Step 4: Simplify right side
    460,761.70x = 163,292,611,146.84
  5. Step 5: Solve for x
    x = 163,292,611,146.84/460,761.70
  6. Step 6: Final answer
    x = 354,397.10

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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.