Home / 630,645.30-945,405.35-231,192.79

Finding the Fourth Proportional to 630,645.30, 945,405.35 and 231,192.79

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Solution

The fourth proportional to 630,645.30, 945,405.35 and 231,192.79 is: 346,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,645.30 : 945,405.35 = 231,192.79 : x
  2. Step 2: Convert to fraction form
    630,645.30/945,405.35 = 231,192.79/x
  3. Step 3: Cross multiply
    630,645.30x = 945,405.35 × 231,192.79
  4. Step 4: Simplify right side
    630,645.30x = 218,570,900,547.43
  5. Step 5: Solve for x
    x = 218,570,900,547.43/630,645.30
  6. Step 6: Final answer
    x = 346,582.94

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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.