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Finding the Fourth Proportional to 623,313.90, 936,007.65 and 343,032.30

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Solution

The fourth proportional to 623,313.90, 936,007.65 and 343,032.30 is: 515,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,313.90 : 936,007.65 = 343,032.30 : x
  2. Step 2: Convert to fraction form
    623,313.90/936,007.65 = 343,032.30/x
  3. Step 3: Cross multiply
    623,313.90x = 936,007.65 × 343,032.30
  4. Step 4: Simplify right side
    623,313.90x = 321,080,856,997.10
  5. Step 5: Solve for x
    x = 321,080,856,997.10/623,313.90
  6. Step 6: Final answer
    x = 515,119.04

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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.