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Finding the Fourth Proportional to 559,316.98, 771,875.25 and 304,676.34

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Solution

The fourth proportional to 559,316.98, 771,875.25 and 304,676.34 is: 420,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,316.98 : 771,875.25 = 304,676.34 : x
  2. Step 2: Convert to fraction form
    559,316.98/771,875.25 = 304,676.34/x
  3. Step 3: Cross multiply
    559,316.98x = 771,875.25 × 304,676.34
  4. Step 4: Simplify right side
    559,316.98x = 235,172,126,106.59
  5. Step 5: Solve for x
    x = 235,172,126,106.59/559,316.98
  6. Step 6: Final answer
    x = 420,463.05

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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.