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Finding the Fourth Proportional to 559,749.96, 772,475.76 and 318,073.50

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Solution

The fourth proportional to 559,749.96, 772,475.76 and 318,073.50 is: 438,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,749.96 : 772,475.76 = 318,073.50 : x
  2. Step 2: Convert to fraction form
    559,749.96/772,475.76 = 318,073.50/x
  3. Step 3: Cross multiply
    559,749.96x = 772,475.76 × 318,073.50
  4. Step 4: Simplify right side
    559,749.96x = 245,704,068,648.36
  5. Step 5: Solve for x
    x = 245,704,068,648.36/559,749.96
  6. Step 6: Final answer
    x = 438,953.26

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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.