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Finding the Fourth Proportional to 702,681.53, 969,699.39 and 380,391.54

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Solution

The fourth proportional to 702,681.53, 969,699.39 and 380,391.54 is: 524,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,681.53 : 969,699.39 = 380,391.54 : x
  2. Step 2: Convert to fraction form
    702,681.53/969,699.39 = 380,391.54/x
  3. Step 3: Cross multiply
    702,681.53x = 969,699.39 × 380,391.54
  4. Step 4: Simplify right side
    702,681.53x = 368,865,444,299.16
  5. Step 5: Solve for x
    x = 368,865,444,299.16/702,681.53
  6. Step 6: Final answer
    x = 524,939.72

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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.