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Finding the Fourth Proportional to 450,511.70, 674,017.95 and 293,047.70

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Solution

The fourth proportional to 450,511.70, 674,017.95 and 293,047.70 is: 438,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,511.70 : 674,017.95 = 293,047.70 : x
  2. Step 2: Convert to fraction form
    450,511.70/674,017.95 = 293,047.70/x
  3. Step 3: Cross multiply
    450,511.70x = 674,017.95 × 293,047.70
  4. Step 4: Simplify right side
    450,511.70x = 197,519,410,006.22
  5. Step 5: Solve for x
    x = 197,519,410,006.22/450,511.70
  6. Step 6: Final answer
    x = 438,433.47

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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.