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Finding the Fourth Proportional to 593,437.12, 891,326.40 and 509,879.68

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Solution

The fourth proportional to 593,437.12, 891,326.40 and 509,879.68 is: 765,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,437.12 : 891,326.40 = 509,879.68 : x
  2. Step 2: Convert to fraction form
    593,437.12/891,326.40 = 509,879.68/x
  3. Step 3: Cross multiply
    593,437.12x = 891,326.40 × 509,879.68
  4. Step 4: Simplify right side
    593,437.12x = 454,469,219,607.55
  5. Step 5: Solve for x
    x = 454,469,219,607.55/593,437.12
  6. Step 6: Final answer
    x = 765,825.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.