Home / 619,931.54-929,009.28-353,141.22

Finding the Fourth Proportional to 619,931.54, 929,009.28 and 353,141.22

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Solution

The fourth proportional to 619,931.54, 929,009.28 and 353,141.22 is: 529,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,931.54 : 929,009.28 = 353,141.22 : x
  2. Step 2: Convert to fraction form
    619,931.54/929,009.28 = 353,141.22/x
  3. Step 3: Cross multiply
    619,931.54x = 929,009.28 × 353,141.22
  4. Step 4: Simplify right side
    619,931.54x = 328,071,470,530.52
  5. Step 5: Solve for x
    x = 328,071,470,530.52/619,931.54
  6. Step 6: Final answer
    x = 529,205.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.