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Finding the Fourth Proportional to 373,721.40, 560,582.10 and 358,959.15

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Solution

The fourth proportional to 373,721.40, 560,582.10 and 358,959.15 is: 538,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,721.40 : 560,582.10 = 358,959.15 : x
  2. Step 2: Convert to fraction form
    373,721.40/560,582.10 = 358,959.15/x
  3. Step 3: Cross multiply
    373,721.40x = 560,582.10 × 358,959.15
  4. Step 4: Simplify right side
    373,721.40x = 201,226,074,121.22
  5. Step 5: Solve for x
    x = 201,226,074,121.22/373,721.40
  6. Step 6: Final answer
    x = 538,438.73

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Similar ratio
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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.