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Finding the Fourth Proportional to 559,335.84, 771,884.85 and 304,688.88

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Solution

The fourth proportional to 559,335.84, 771,884.85 and 304,688.88 is: 420,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,335.84 : 771,884.85 = 304,688.88 : x
  2. Step 2: Convert to fraction form
    559,335.84/771,884.85 = 304,688.88/x
  3. Step 3: Cross multiply
    559,335.84x = 771,884.85 × 304,688.88
  4. Step 4: Simplify right side
    559,335.84x = 235,184,730,435.47
  5. Step 5: Solve for x
    x = 235,184,730,435.47/559,335.84
  6. Step 6: Final answer
    x = 420,471.41

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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.