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Finding the Fourth Proportional to 291,785.34, 437,106.69 and 260,048.46

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Solution

The fourth proportional to 291,785.34, 437,106.69 and 260,048.46 is: 389,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,785.34 : 437,106.69 = 260,048.46 : x
  2. Step 2: Convert to fraction form
    291,785.34/437,106.69 = 260,048.46/x
  3. Step 3: Cross multiply
    291,785.34x = 437,106.69 × 260,048.46
  4. Step 4: Simplify right side
    291,785.34x = 113,668,921,590.20
  5. Step 5: Solve for x
    x = 113,668,921,590.20/291,785.34
  6. Step 6: Final answer
    x = 389,563.51

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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.