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Finding the Fourth Proportional to 630,449.73, 870,020.62 and 404,095.23

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Solution

The fourth proportional to 630,449.73, 870,020.62 and 404,095.23 is: 557,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,449.73 : 870,020.62 = 404,095.23 : x
  2. Step 2: Convert to fraction form
    630,449.73/870,020.62 = 404,095.23/x
  3. Step 3: Cross multiply
    630,449.73x = 870,020.62 × 404,095.23
  4. Step 4: Simplify right side
    630,449.73x = 351,571,181,533.41
  5. Step 5: Solve for x
    x = 351,571,181,533.41/630,449.73
  6. Step 6: Final answer
    x = 557,651.41

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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.