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Finding the Fourth Proportional to 346,158.52, 518,710.74 and 256,993.72

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Solution

The fourth proportional to 346,158.52, 518,710.74 and 256,993.72 is: 385,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,158.52 : 518,710.74 = 256,993.72 : x
  2. Step 2: Convert to fraction form
    346,158.52/518,710.74 = 256,993.72/x
  3. Step 3: Cross multiply
    346,158.52x = 518,710.74 × 256,993.72
  4. Step 4: Simplify right side
    346,158.52x = 133,305,402,676.55
  5. Step 5: Solve for x
    x = 133,305,402,676.55/346,158.52
  6. Step 6: Final answer
    x = 385,099.30

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1.5x scale

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.