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Finding the Fourth Proportional to 487,096.44, 671,756.32 and 405,694.95

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Solution

The fourth proportional to 487,096.44, 671,756.32 and 405,694.95 is: 559,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,096.44 : 671,756.32 = 405,694.95 : x
  2. Step 2: Convert to fraction form
    487,096.44/671,756.32 = 405,694.95/x
  3. Step 3: Cross multiply
    487,096.44x = 671,756.32 × 405,694.95
  4. Step 4: Simplify right side
    487,096.44x = 272,528,144,642.62
  5. Step 5: Solve for x
    x = 272,528,144,642.62/487,096.44
  6. Step 6: Final answer
    x = 559,495.25

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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.