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Finding the Fourth Proportional to 518,570.70, 776,934.45 and 444,842.70

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Solution

The fourth proportional to 518,570.70, 776,934.45 and 444,842.70 is: 666,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,570.70 : 776,934.45 = 444,842.70 : x
  2. Step 2: Convert to fraction form
    518,570.70/776,934.45 = 444,842.70/x
  3. Step 3: Cross multiply
    518,570.70x = 776,934.45 × 444,842.70
  4. Step 4: Simplify right side
    518,570.70x = 345,613,618,461.02
  5. Step 5: Solve for x
    x = 345,613,618,461.02/518,570.70
  6. Step 6: Final answer
    x = 666,473.48

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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.