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Finding the Fourth Proportional to 461,976.68, 637,486.36 and 257,999.32

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Solution

The fourth proportional to 461,976.68, 637,486.36 and 257,999.32 is: 356,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,976.68 : 637,486.36 = 257,999.32 : x
  2. Step 2: Convert to fraction form
    461,976.68/637,486.36 = 257,999.32/x
  3. Step 3: Cross multiply
    461,976.68x = 637,486.36 × 257,999.32
  4. Step 4: Simplify right side
    461,976.68x = 164,471,047,389.28
  5. Step 5: Solve for x
    x = 164,471,047,389.28/461,976.68
  6. Step 6: Final answer
    x = 356,015.91

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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.