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Finding the Fourth Proportional to 640,366.29, 883,313.91 and 410,845.50

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Solution

The fourth proportional to 640,366.29, 883,313.91 and 410,845.50 is: 566,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,366.29 : 883,313.91 = 410,845.50 : x
  2. Step 2: Convert to fraction form
    640,366.29/883,313.91 = 410,845.50/x
  3. Step 3: Cross multiply
    640,366.29x = 883,313.91 × 410,845.50
  4. Step 4: Simplify right side
    640,366.29x = 362,905,545,010.91
  5. Step 5: Solve for x
    x = 362,905,545,010.91/640,366.29
  6. Step 6: Final answer
    x = 566,715.57

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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.