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Finding the Fourth Proportional to 395,930.16, 546,240.42 and 260,037.72

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Solution

The fourth proportional to 395,930.16, 546,240.42 and 260,037.72 is: 358,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,930.16 : 546,240.42 = 260,037.72 : x
  2. Step 2: Convert to fraction form
    395,930.16/546,240.42 = 260,037.72/x
  3. Step 3: Cross multiply
    395,930.16x = 546,240.42 × 260,037.72
  4. Step 4: Simplify right side
    395,930.16x = 142,043,113,388.64
  5. Step 5: Solve for x
    x = 142,043,113,388.64/395,930.16
  6. Step 6: Final answer
    x = 358,758.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.