Home / 774,662.20-1,069,005.30-430,519.60

Finding the Fourth Proportional to 774,662.20, 1,069,005.30 and 430,519.60

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Solution

The fourth proportional to 774,662.20, 1,069,005.30 and 430,519.60 is: 594,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,662.20 : 1,069,005.30 = 430,519.60 : x
  2. Step 2: Convert to fraction form
    774,662.20/1,069,005.30 = 430,519.60/x
  3. Step 3: Cross multiply
    774,662.20x = 1,069,005.30 × 430,519.60
  4. Step 4: Simplify right side
    774,662.20x = 460,227,734,153.88
  5. Step 5: Solve for x
    x = 460,227,734,153.88/774,662.20
  6. Step 6: Final answer
    x = 594,101.19

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Double scale
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1.5x scale

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.