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Finding the Fourth Proportional to 517,445.76, 713,986.29 and 475,589.51

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Solution

The fourth proportional to 517,445.76, 713,986.29 and 475,589.51 is: 656,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,445.76 : 713,986.29 = 475,589.51 : x
  2. Step 2: Convert to fraction form
    517,445.76/713,986.29 = 475,589.51/x
  3. Step 3: Cross multiply
    517,445.76x = 713,986.29 × 475,589.51
  4. Step 4: Simplify right side
    517,445.76x = 339,564,386,237.89
  5. Step 5: Solve for x
    x = 339,564,386,237.89/517,445.76
  6. Step 6: Final answer
    x = 656,231.85

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1.5x scale

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.