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Finding the Fourth Proportional to 709,185.96, 979,037.82 and 547,678.44

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Solution

The fourth proportional to 709,185.96, 979,037.82 and 547,678.44 is: 756,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,185.96 : 979,037.82 = 547,678.44 : x
  2. Step 2: Convert to fraction form
    709,185.96/979,037.82 = 547,678.44/x
  3. Step 3: Cross multiply
    709,185.96x = 979,037.82 × 547,678.44
  4. Step 4: Simplify right side
    709,185.96x = 536,197,905,958.60
  5. Step 5: Solve for x
    x = 536,197,905,958.60/709,185.96
  6. Step 6: Final answer
    x = 756,075.19

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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.