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Finding the Fourth Proportional to 433,778.28, 597,802.62 and 312,713.25

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Solution

The fourth proportional to 433,778.28, 597,802.62 and 312,713.25 is: 430,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,778.28 : 597,802.62 = 312,713.25 : x
  2. Step 2: Convert to fraction form
    433,778.28/597,802.62 = 312,713.25/x
  3. Step 3: Cross multiply
    433,778.28x = 597,802.62 × 312,713.25
  4. Step 4: Simplify right side
    433,778.28x = 186,940,800,158.72
  5. Step 5: Solve for x
    x = 186,940,800,158.72/433,778.28
  6. Step 6: Final answer
    x = 430,959.34

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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.