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Finding the Fourth Proportional to 617,536.80, 926,305.20 and 376,999.20

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Solution

The fourth proportional to 617,536.80, 926,305.20 and 376,999.20 is: 565,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,536.80 : 926,305.20 = 376,999.20 : x
  2. Step 2: Convert to fraction form
    617,536.80/926,305.20 = 376,999.20/x
  3. Step 3: Cross multiply
    617,536.80x = 926,305.20 × 376,999.20
  4. Step 4: Simplify right side
    617,536.80x = 349,216,319,355.84
  5. Step 5: Solve for x
    x = 349,216,319,355.84/617,536.80
  6. Step 6: Final answer
    x = 565,498.80

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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.