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Finding the Fourth Proportional to 551,901.40, 761,056.86 and 461,223.52

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Solution

The fourth proportional to 551,901.40, 761,056.86 and 461,223.52 is: 636,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,901.40 : 761,056.86 = 461,223.52 : x
  2. Step 2: Convert to fraction form
    551,901.40/761,056.86 = 461,223.52/x
  3. Step 3: Cross multiply
    551,901.40x = 761,056.86 × 461,223.52
  4. Step 4: Simplify right side
    551,901.40x = 351,017,323,716.29
  5. Step 5: Solve for x
    x = 351,017,323,716.29/551,901.40
  6. Step 6: Final answer
    x = 636,014.56

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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.