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Finding the Fourth Proportional to 554,006.64, 831,460.32 and 314,272.56

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Solution

The fourth proportional to 554,006.64, 831,460.32 and 314,272.56 is: 471,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,006.64 : 831,460.32 = 314,272.56 : x
  2. Step 2: Convert to fraction form
    554,006.64/831,460.32 = 314,272.56/x
  3. Step 3: Cross multiply
    554,006.64x = 831,460.32 × 314,272.56
  4. Step 4: Simplify right side
    554,006.64x = 261,305,163,304.82
  5. Step 5: Solve for x
    x = 261,305,163,304.82/554,006.64
  6. Step 6: Final answer
    x = 471,664.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.