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Finding the Fourth Proportional to 641,586.79, 885,483.27 and 369,602.36

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Solution

The fourth proportional to 641,586.79, 885,483.27 and 369,602.36 is: 510,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,586.79 : 885,483.27 = 369,602.36 : x
  2. Step 2: Convert to fraction form
    641,586.79/885,483.27 = 369,602.36/x
  3. Step 3: Cross multiply
    641,586.79x = 885,483.27 × 369,602.36
  4. Step 4: Simplify right side
    641,586.79x = 327,276,700,057.09
  5. Step 5: Solve for x
    x = 327,276,700,057.09/641,586.79
  6. Step 6: Final answer
    x = 510,105.11

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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.