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Finding the Fourth Proportional to 437,580.77, 657,741.28 and 288,777.29

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Solution

The fourth proportional to 437,580.77, 657,741.28 and 288,777.29 is: 434,070.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,580.77 : 657,741.28 = 288,777.29 : x
  2. Step 2: Convert to fraction form
    437,580.77/657,741.28 = 288,777.29/x
  3. Step 3: Cross multiply
    437,580.77x = 657,741.28 × 288,777.29
  4. Step 4: Simplify right side
    437,580.77x = 189,940,742,446.90
  5. Step 5: Solve for x
    x = 189,940,742,446.90/437,580.77
  6. Step 6: Final answer
    x = 434,070.13

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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.