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Finding the Fourth Proportional to 561,019.50, 841,573.26 and 187,042.50

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Solution

The fourth proportional to 561,019.50, 841,573.26 and 187,042.50 is: 280,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,019.50 : 841,573.26 = 187,042.50 : x
  2. Step 2: Convert to fraction form
    561,019.50/841,573.26 = 187,042.50/x
  3. Step 3: Cross multiply
    561,019.50x = 841,573.26 × 187,042.50
  4. Step 4: Simplify right side
    561,019.50x = 157,409,966,483.55
  5. Step 5: Solve for x
    x = 157,409,966,483.55/561,019.50
  6. Step 6: Final answer
    x = 280,578.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.