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Finding the Fourth Proportional to 616,440.32, 850,754.40 and 361,828.16

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Solution

The fourth proportional to 616,440.32, 850,754.40 and 361,828.16 is: 499,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,440.32 : 850,754.40 = 361,828.16 : x
  2. Step 2: Convert to fraction form
    616,440.32/850,754.40 = 361,828.16/x
  3. Step 3: Cross multiply
    616,440.32x = 850,754.40 × 361,828.16
  4. Step 4: Simplify right side
    616,440.32x = 307,826,899,163.90
  5. Step 5: Solve for x
    x = 307,826,899,163.90/616,440.32
  6. Step 6: Final answer
    x = 499,362.05

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1.5x scale

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.