Home / 919,513.08-1,378,101.60-413,533.62

Finding the Fourth Proportional to 919,513.08, 1,378,101.60 and 413,533.62

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Solution

The fourth proportional to 919,513.08, 1,378,101.60 and 413,533.62 is: 619,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,513.08 : 1,378,101.60 = 413,533.62 : x
  2. Step 2: Convert to fraction form
    919,513.08/1,378,101.60 = 413,533.62/x
  3. Step 3: Cross multiply
    919,513.08x = 1,378,101.60 × 413,533.62
  4. Step 4: Simplify right side
    919,513.08x = 569,891,343,375.79
  5. Step 5: Solve for x
    x = 569,891,343,375.79/919,513.08
  6. Step 6: Final answer
    x = 619,775.14

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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.