Home / 414,905.80-620,976.30-365,139.40

Finding the Fourth Proportional to 414,905.80, 620,976.30 and 365,139.40

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Solution

The fourth proportional to 414,905.80, 620,976.30 and 365,139.40 is: 546,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,905.80 : 620,976.30 = 365,139.40 : x
  2. Step 2: Convert to fraction form
    414,905.80/620,976.30 = 365,139.40/x
  3. Step 3: Cross multiply
    414,905.80x = 620,976.30 × 365,139.40
  4. Step 4: Simplify right side
    414,905.80x = 226,742,913,596.22
  5. Step 5: Solve for x
    x = 226,742,913,596.22/414,905.80
  6. Step 6: Final answer
    x = 546,492.51

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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.