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Finding the Fourth Proportional to 518,566.20, 776,927.70 and 444,838.20

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Solution

The fourth proportional to 518,566.20, 776,927.70 and 444,838.20 is: 666,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,566.20 : 776,927.70 = 444,838.20 : x
  2. Step 2: Convert to fraction form
    518,566.20/776,927.70 = 444,838.20/x
  3. Step 3: Cross multiply
    518,566.20x = 776,927.70 × 444,838.20
  4. Step 4: Simplify right side
    518,566.20x = 345,607,119,598.14
  5. Step 5: Solve for x
    x = 345,607,119,598.14/518,566.20
  6. Step 6: Final answer
    x = 666,466.73

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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.