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Finding the Fourth Proportional to 525,955.60, 725,817 and 299,639.44

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Solution

The fourth proportional to 525,955.60, 725,817 and 299,639.44 is: 413,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,955.60 : 725,817 = 299,639.44 : x
  2. Step 2: Convert to fraction form
    525,955.60/725,817 = 299,639.44/x
  3. Step 3: Cross multiply
    525,955.60x = 725,817 × 299,639.44
  4. Step 4: Simplify right side
    525,955.60x = 217,483,399,422.48
  5. Step 5: Solve for x
    x = 217,483,399,422.48/525,955.60
  6. Step 6: Final answer
    x = 413,501.44

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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.