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Finding the Fourth Proportional to 630,583.32, 870,197.80 and 344,108.28

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Solution

The fourth proportional to 630,583.32, 870,197.80 and 344,108.28 is: 474,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,583.32 : 870,197.80 = 344,108.28 : x
  2. Step 2: Convert to fraction form
    630,583.32/870,197.80 = 344,108.28/x
  3. Step 3: Cross multiply
    630,583.32x = 870,197.80 × 344,108.28
  4. Step 4: Simplify right side
    630,583.32x = 299,442,268,217.78
  5. Step 5: Solve for x
    x = 299,442,268,217.78/630,583.32
  6. Step 6: Final answer
    x = 474,865.51

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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.