Home / 630,556.20-870,151.14-344,079.72

Finding the Fourth Proportional to 630,556.20, 870,151.14 and 344,079.72

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Solution

The fourth proportional to 630,556.20, 870,151.14 and 344,079.72 is: 474,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,556.20 : 870,151.14 = 344,079.72 : x
  2. Step 2: Convert to fraction form
    630,556.20/870,151.14 = 344,079.72/x
  3. Step 3: Cross multiply
    630,556.20x = 870,151.14 × 344,079.72
  4. Step 4: Simplify right side
    630,556.20x = 299,401,360,608.88
  5. Step 5: Solve for x
    x = 299,401,360,608.88/630,556.20
  6. Step 6: Final answer
    x = 474,821.06

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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.