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Finding the Fourth Proportional to 525,807.75, 725,614.71 and 284,090.40

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Solution

The fourth proportional to 525,807.75, 725,614.71 and 284,090.40 is: 392,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,807.75 : 725,614.71 = 284,090.40 : x
  2. Step 2: Convert to fraction form
    525,807.75/725,614.71 = 284,090.40/x
  3. Step 3: Cross multiply
    525,807.75x = 725,614.71 × 284,090.40
  4. Step 4: Simplify right side
    525,807.75x = 206,140,173,209.78
  5. Step 5: Solve for x
    x = 206,140,173,209.78/525,807.75
  6. Step 6: Final answer
    x = 392,044.76

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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.