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Finding the Fourth Proportional to 403,977.60, 557,841.60 and 253,334.40

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Solution

The fourth proportional to 403,977.60, 557,841.60 and 253,334.40 is: 349,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,977.60 : 557,841.60 = 253,334.40 : x
  2. Step 2: Convert to fraction form
    403,977.60/557,841.60 = 253,334.40/x
  3. Step 3: Cross multiply
    403,977.60x = 557,841.60 × 253,334.40
  4. Step 4: Simplify right side
    403,977.60x = 141,320,467,031.04
  5. Step 5: Solve for x
    x = 141,320,467,031.04/403,977.60
  6. Step 6: Final answer
    x = 349,822.53

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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.