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Finding the Fourth Proportional to 303,383.80, 455,075.70 and 92,994.40

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Solution

The fourth proportional to 303,383.80, 455,075.70 and 92,994.40 is: 139,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,383.80 : 455,075.70 = 92,994.40 : x
  2. Step 2: Convert to fraction form
    303,383.80/455,075.70 = 92,994.40/x
  3. Step 3: Cross multiply
    303,383.80x = 455,075.70 × 92,994.40
  4. Step 4: Simplify right side
    303,383.80x = 42,319,491,676.08
  5. Step 5: Solve for x
    x = 42,319,491,676.08/303,383.80
  6. Step 6: Final answer
    x = 139,491.60

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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.