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Finding the Fourth Proportional to 512,953.99, 707,962.61 and 347,306.83

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Solution

The fourth proportional to 512,953.99, 707,962.61 and 347,306.83 is: 479,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,953.99 : 707,962.61 = 347,306.83 : x
  2. Step 2: Convert to fraction form
    512,953.99/707,962.61 = 347,306.83/x
  3. Step 3: Cross multiply
    512,953.99x = 707,962.61 × 347,306.83
  4. Step 4: Simplify right side
    512,953.99x = 245,880,248,935.99
  5. Step 5: Solve for x
    x = 245,880,248,935.99/512,953.99
  6. Step 6: Final answer
    x = 479,341.72

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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.