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Finding the Fourth Proportional to 456,826.92, 685,236.42 and 357,070.92

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Solution

The fourth proportional to 456,826.92, 685,236.42 and 357,070.92 is: 535,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,826.92 : 685,236.42 = 357,070.92 : x
  2. Step 2: Convert to fraction form
    456,826.92/685,236.42 = 357,070.92/x
  3. Step 3: Cross multiply
    456,826.92x = 685,236.42 × 357,070.92
  4. Step 4: Simplify right side
    456,826.92x = 244,677,998,906.91
  5. Step 5: Solve for x
    x = 244,677,998,906.91/456,826.92
  6. Step 6: Final answer
    x = 535,603.28

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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.