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Finding the Fourth Proportional to 609,639.58, 841,713.37 and 380,545.66

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Solution

The fourth proportional to 609,639.58, 841,713.37 and 380,545.66 is: 525,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,639.58 : 841,713.37 = 380,545.66 : x
  2. Step 2: Convert to fraction form
    609,639.58/841,713.37 = 380,545.66/x
  3. Step 3: Cross multiply
    609,639.58x = 841,713.37 × 380,545.66
  4. Step 4: Simplify right side
    609,639.58x = 320,310,369,917.47
  5. Step 5: Solve for x
    x = 320,310,369,917.47/609,639.58
  6. Step 6: Final answer
    x = 525,409.41

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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.