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Finding the Fourth Proportional to 536,393.54, 740,878.75 and 401,029.18

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Solution

The fourth proportional to 536,393.54, 740,878.75 and 401,029.18 is: 553,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,393.54 : 740,878.75 = 401,029.18 : x
  2. Step 2: Convert to fraction form
    536,393.54/740,878.75 = 401,029.18/x
  3. Step 3: Cross multiply
    536,393.54x = 740,878.75 × 401,029.18
  4. Step 4: Simplify right side
    536,393.54x = 297,113,996,241.02
  5. Step 5: Solve for x
    x = 297,113,996,241.02/536,393.54
  6. Step 6: Final answer
    x = 553,910.46

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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.