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Finding the Fourth Proportional to 693,855.81, 957,681.05 and 451,716.75

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Solution

The fourth proportional to 693,855.81, 957,681.05 and 451,716.75 is: 623,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,855.81 : 957,681.05 = 451,716.75 : x
  2. Step 2: Convert to fraction form
    693,855.81/957,681.05 = 451,716.75/x
  3. Step 3: Cross multiply
    693,855.81x = 957,681.05 × 451,716.75
  4. Step 4: Simplify right side
    693,855.81x = 432,600,569,184.00
  5. Step 5: Solve for x
    x = 432,600,569,184.00/693,855.81
  6. Step 6: Final answer
    x = 623,473.30

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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.