Home / 619,379.10-929,615.40-366,343.20

Finding the Fourth Proportional to 619,379.10, 929,615.40 and 366,343.20

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Solution

The fourth proportional to 619,379.10, 929,615.40 and 366,343.20 is: 549,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,379.10 : 929,615.40 = 366,343.20 : x
  2. Step 2: Convert to fraction form
    619,379.10/929,615.40 = 366,343.20/x
  3. Step 3: Cross multiply
    619,379.10x = 929,615.40 × 366,343.20
  4. Step 4: Simplify right side
    619,379.10x = 340,558,280,405.28
  5. Step 5: Solve for x
    x = 340,558,280,405.28/619,379.10
  6. Step 6: Final answer
    x = 549,838.19

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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.