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Finding the Fourth Proportional to 869,697, 1,200,313.08 and 530,362.08

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Solution

The fourth proportional to 869,697, 1,200,313.08 and 530,362.08 is: 731,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,697 : 1,200,313.08 = 530,362.08 : x
  2. Step 2: Convert to fraction form
    869,697/1,200,313.08 = 530,362.08/x
  3. Step 3: Cross multiply
    869,697x = 1,200,313.08 × 530,362.08
  4. Step 4: Simplify right side
    869,697x = 636,600,541,760.01
  5. Step 5: Solve for x
    x = 636,600,541,760.01/869,697
  6. Step 6: Final answer
    x = 731,979.69

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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.