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Finding the Fourth Proportional to 675,439.50, 932,135.76 and 373,633.50

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Solution

The fourth proportional to 675,439.50, 932,135.76 and 373,633.50 is: 515,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,439.50 : 932,135.76 = 373,633.50 : x
  2. Step 2: Convert to fraction form
    675,439.50/932,135.76 = 373,633.50/x
  3. Step 3: Cross multiply
    675,439.50x = 932,135.76 × 373,633.50
  4. Step 4: Simplify right side
    675,439.50x = 348,277,146,483.96
  5. Step 5: Solve for x
    x = 348,277,146,483.96/675,439.50
  6. Step 6: Final answer
    x = 515,630.41

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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.