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Finding the Fourth Proportional to 551,239.64, 758,951.03 and 470,342.51

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Solution

The fourth proportional to 551,239.64, 758,951.03 and 470,342.51 is: 647,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,239.64 : 758,951.03 = 470,342.51 : x
  2. Step 2: Convert to fraction form
    551,239.64/758,951.03 = 470,342.51/x
  3. Step 3: Cross multiply
    551,239.64x = 758,951.03 × 470,342.51
  4. Step 4: Simplify right side
    551,239.64x = 356,966,930,509.90
  5. Step 5: Solve for x
    x = 356,966,930,509.90/551,239.64
  6. Step 6: Final answer
    x = 647,571.23

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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.