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Finding the Fourth Proportional to 578,051.70, 867,001 and 262,436.02

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Solution

The fourth proportional to 578,051.70, 867,001 and 262,436.02 is: 393,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,051.70 : 867,001 = 262,436.02 : x
  2. Step 2: Convert to fraction form
    578,051.70/867,001 = 262,436.02/x
  3. Step 3: Cross multiply
    578,051.70x = 867,001 × 262,436.02
  4. Step 4: Simplify right side
    578,051.70x = 227,532,291,776.02
  5. Step 5: Solve for x
    x = 227,532,291,776.02/578,051.70
  6. Step 6: Final answer
    x = 393,619.28

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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.