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Finding the Fourth Proportional to 468,840.74, 646,998.63 and 253,980.56

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Solution

The fourth proportional to 468,840.74, 646,998.63 and 253,980.56 is: 350,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,840.74 : 646,998.63 = 253,980.56 : x
  2. Step 2: Convert to fraction form
    468,840.74/646,998.63 = 253,980.56/x
  3. Step 3: Cross multiply
    468,840.74x = 646,998.63 × 253,980.56
  4. Step 4: Simplify right side
    468,840.74x = 164,325,074,366.63
  5. Step 5: Solve for x
    x = 164,325,074,366.63/468,840.74
  6. Step 6: Final answer
    x = 350,492.31

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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.