Home / 525,640.90-725,384.73-283,923.47

Finding the Fourth Proportional to 525,640.90, 725,384.73 and 283,923.47

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Solution

The fourth proportional to 525,640.90, 725,384.73 and 283,923.47 is: 391,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,640.90 : 725,384.73 = 283,923.47 : x
  2. Step 2: Convert to fraction form
    525,640.90/725,384.73 = 283,923.47/x
  3. Step 3: Cross multiply
    525,640.90x = 725,384.73 × 283,923.47
  4. Step 4: Simplify right side
    525,640.90x = 205,953,744,580.07
  5. Step 5: Solve for x
    x = 205,953,744,580.07/525,640.90
  6. Step 6: Final answer
    x = 391,814.54

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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.