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Finding the Fourth Proportional to 586,429.80, 879,644.70 and 271,501.80

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Solution

The fourth proportional to 586,429.80, 879,644.70 and 271,501.80 is: 407,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,429.80 : 879,644.70 = 271,501.80 : x
  2. Step 2: Convert to fraction form
    586,429.80/879,644.70 = 271,501.80/x
  3. Step 3: Cross multiply
    586,429.80x = 879,644.70 × 271,501.80
  4. Step 4: Simplify right side
    586,429.80x = 238,825,119,410.46
  5. Step 5: Solve for x
    x = 238,825,119,410.46/586,429.80
  6. Step 6: Final answer
    x = 407,252.70

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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.