Home / 448,811.48-619,386.54-257,819.96

Finding the Fourth Proportional to 448,811.48, 619,386.54 and 257,819.96

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Solution

The fourth proportional to 448,811.48, 619,386.54 and 257,819.96 is: 355,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,811.48 : 619,386.54 = 257,819.96 : x
  2. Step 2: Convert to fraction form
    448,811.48/619,386.54 = 257,819.96/x
  3. Step 3: Cross multiply
    448,811.48x = 619,386.54 × 257,819.96
  4. Step 4: Simplify right side
    448,811.48x = 159,690,212,967.34
  5. Step 5: Solve for x
    x = 159,690,212,967.34/448,811.48
  6. Step 6: Final answer
    x = 355,806.88

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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.