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Finding the Fourth Proportional to 525,658.78, 725,409.01 and 283,941.36

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Solution

The fourth proportional to 525,658.78, 725,409.01 and 283,941.36 is: 391,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,658.78 : 725,409.01 = 283,941.36 : x
  2. Step 2: Convert to fraction form
    525,658.78/725,409.01 = 283,941.36/x
  3. Step 3: Cross multiply
    525,658.78x = 725,409.01 × 283,941.36
  4. Step 4: Simplify right side
    525,658.78x = 205,973,615,808.90
  5. Step 5: Solve for x
    x = 205,973,615,808.90/525,658.78
  6. Step 6: Final answer
    x = 391,839.01

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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.