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Finding the Fourth Proportional to 483,756.64, 666,059.52 and 438,916.30

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Solution

The fourth proportional to 483,756.64, 666,059.52 and 438,916.30 is: 604,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,756.64 : 666,059.52 = 438,916.30 : x
  2. Step 2: Convert to fraction form
    483,756.64/666,059.52 = 438,916.30/x
  3. Step 3: Cross multiply
    483,756.64x = 666,059.52 × 438,916.30
  4. Step 4: Simplify right side
    483,756.64x = 292,344,380,098.18
  5. Step 5: Solve for x
    x = 292,344,380,098.18/483,756.64
  6. Step 6: Final answer
    x = 604,321.17

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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.