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Finding the Fourth Proportional to 586,159.78, 877,861.83 and 285,698.77

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Solution

The fourth proportional to 586,159.78, 877,861.83 and 285,698.77 is: 427,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,159.78 : 877,861.83 = 285,698.77 : x
  2. Step 2: Convert to fraction form
    586,159.78/877,861.83 = 285,698.77/x
  3. Step 3: Cross multiply
    586,159.78x = 877,861.83 × 285,698.77
  4. Step 4: Simplify right side
    586,159.78x = 250,804,045,060.95
  5. Step 5: Solve for x
    x = 250,804,045,060.95/586,159.78
  6. Step 6: Final answer
    x = 427,876.59

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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.