Home / 484,582.20-668,589.18-290,939.64

Finding the Fourth Proportional to 484,582.20, 668,589.18 and 290,939.64

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Solution

The fourth proportional to 484,582.20, 668,589.18 and 290,939.64 is: 401,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,582.20 : 668,589.18 = 290,939.64 : x
  2. Step 2: Convert to fraction form
    484,582.20/668,589.18 = 290,939.64/x
  3. Step 3: Cross multiply
    484,582.20x = 668,589.18 × 290,939.64
  4. Step 4: Simplify right side
    484,582.20x = 194,519,095,337.10
  5. Step 5: Solve for x
    x = 194,519,095,337.10/484,582.20
  6. Step 6: Final answer
    x = 401,416.10

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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.