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Finding the Fourth Proportional to 656,064.70, 983,477.85 and 356,103.10

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Solution

The fourth proportional to 656,064.70, 983,477.85 and 356,103.10 is: 533,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,064.70 : 983,477.85 = 356,103.10 : x
  2. Step 2: Convert to fraction form
    656,064.70/983,477.85 = 356,103.10/x
  3. Step 3: Cross multiply
    656,064.70x = 983,477.85 × 356,103.10
  4. Step 4: Simplify right side
    656,064.70x = 350,219,511,166.34
  5. Step 5: Solve for x
    x = 350,219,511,166.34/656,064.70
  6. Step 6: Final answer
    x = 533,818.56

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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.