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Finding the Fourth Proportional to 702,726.35, 969,762.14 and 380,436.23

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Solution

The fourth proportional to 702,726.35, 969,762.14 and 380,436.23 is: 525,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,726.35 : 969,762.14 = 380,436.23 : x
  2. Step 2: Convert to fraction form
    702,726.35/969,762.14 = 380,436.23/x
  3. Step 3: Cross multiply
    702,726.35x = 969,762.14 × 380,436.23
  4. Step 4: Simplify right side
    702,726.35x = 368,932,648,640.61
  5. Step 5: Solve for x
    x = 368,932,648,640.61/702,726.35
  6. Step 6: Final answer
    x = 525,001.87

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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.