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Finding the Fourth Proportional to 528,297.76, 729,101.20 and 301,899.36

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Solution

The fourth proportional to 528,297.76, 729,101.20 and 301,899.36 is: 416,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,297.76 : 729,101.20 = 301,899.36 : x
  2. Step 2: Convert to fraction form
    528,297.76/729,101.20 = 301,899.36/x
  3. Step 3: Cross multiply
    528,297.76x = 729,101.20 × 301,899.36
  4. Step 4: Simplify right side
    528,297.76x = 220,115,185,655.23
  5. Step 5: Solve for x
    x = 220,115,185,655.23/528,297.76
  6. Step 6: Final answer
    x = 416,649.86

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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.