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Finding the Fourth Proportional to 461,345.60, 692,212.80 and 251,134.40

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Solution

The fourth proportional to 461,345.60, 692,212.80 and 251,134.40 is: 376,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,345.60 : 692,212.80 = 251,134.40 : x
  2. Step 2: Convert to fraction form
    461,345.60/692,212.80 = 251,134.40/x
  3. Step 3: Cross multiply
    461,345.60x = 692,212.80 × 251,134.40
  4. Step 4: Simplify right side
    461,345.60x = 173,838,446,200.32
  5. Step 5: Solve for x
    x = 173,838,446,200.32/461,345.60
  6. Step 6: Final answer
    x = 376,807.42

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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.