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Finding the Fourth Proportional to 564,556.76, 778,014.38 and 554,181.68

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Solution

The fourth proportional to 564,556.76, 778,014.38 and 554,181.68 is: 763,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,556.76 : 778,014.38 = 554,181.68 : x
  2. Step 2: Convert to fraction form
    564,556.76/778,014.38 = 554,181.68/x
  3. Step 3: Cross multiply
    564,556.76x = 778,014.38 × 554,181.68
  4. Step 4: Simplify right side
    564,556.76x = 431,161,316,172.56
  5. Step 5: Solve for x
    x = 431,161,316,172.56/564,556.76
  6. Step 6: Final answer
    x = 763,716.51

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Double scale
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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.