Home / 406,819.24-561,440.10-245,713.48

Finding the Fourth Proportional to 406,819.24, 561,440.10 and 245,713.48

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Solution

The fourth proportional to 406,819.24, 561,440.10 and 245,713.48 is: 339,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,819.24 : 561,440.10 = 245,713.48 : x
  2. Step 2: Convert to fraction form
    406,819.24/561,440.10 = 245,713.48/x
  3. Step 3: Cross multiply
    406,819.24x = 561,440.10 × 245,713.48
  4. Step 4: Simplify right side
    406,819.24x = 137,953,400,782.55
  5. Step 5: Solve for x
    x = 137,953,400,782.55/406,819.24
  6. Step 6: Final answer
    x = 339,102.45

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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.