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Finding the Fourth Proportional to 693,841.56, 957,661.38 and 451,702.50

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Solution

The fourth proportional to 693,841.56, 957,661.38 and 451,702.50 is: 623,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,841.56 : 957,661.38 = 451,702.50 : x
  2. Step 2: Convert to fraction form
    693,841.56/957,661.38 = 451,702.50/x
  3. Step 3: Cross multiply
    693,841.56x = 957,661.38 × 451,702.50
  4. Step 4: Simplify right side
    693,841.56x = 432,578,039,499.45
  5. Step 5: Solve for x
    x = 432,578,039,499.45/693,841.56
  6. Step 6: Final answer
    x = 623,453.63

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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.