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Finding the Fourth Proportional to 517,341.07, 713,925.53 and 287,894.44

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Solution

The fourth proportional to 517,341.07, 713,925.53 and 287,894.44 is: 397,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,341.07 : 713,925.53 = 287,894.44 : x
  2. Step 2: Convert to fraction form
    517,341.07/713,925.53 = 287,894.44/x
  3. Step 3: Cross multiply
    517,341.07x = 713,925.53 × 287,894.44
  4. Step 4: Simplify right side
    517,341.07x = 205,535,185,651.95
  5. Step 5: Solve for x
    x = 205,535,185,651.95/517,341.07
  6. Step 6: Final answer
    x = 397,291.46

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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.