Home / 619,302.08-928,730.20-214,384.30

Finding the Fourth Proportional to 619,302.08, 928,730.20 and 214,384.30

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Solution

The fourth proportional to 619,302.08, 928,730.20 and 214,384.30 is: 321,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,302.08 : 928,730.20 = 214,384.30 : x
  2. Step 2: Convert to fraction form
    619,302.08/928,730.20 = 214,384.30/x
  3. Step 3: Cross multiply
    619,302.08x = 928,730.20 × 214,384.30
  4. Step 4: Simplify right side
    619,302.08x = 199,105,173,815.86
  5. Step 5: Solve for x
    x = 199,105,173,815.86/619,302.08
  6. Step 6: Final answer
    x = 321,499.28

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1.5x scale

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.