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Finding the Fourth Proportional to 571,928.85, 788,617.62 and 468,240.75

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Solution

The fourth proportional to 571,928.85, 788,617.62 and 468,240.75 is: 645,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,928.85 : 788,617.62 = 468,240.75 : x
  2. Step 2: Convert to fraction form
    571,928.85/788,617.62 = 468,240.75/x
  3. Step 3: Cross multiply
    571,928.85x = 788,617.62 × 468,240.75
  4. Step 4: Simplify right side
    571,928.85x = 369,262,905,852.02
  5. Step 5: Solve for x
    x = 369,262,905,852.02/571,928.85
  6. Step 6: Final answer
    x = 645,644.83

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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.