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Finding the Fourth Proportional to 817,082,693.66, 1,127,922,040.66 and 549,313,822.34

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Solution

The fourth proportional to 817,082,693.66, 1,127,922,040.66 and 549,313,822.34 is: 758,286,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,082,693.66 : 1,127,922,040.66 = 549,313,822.34 : x
  2. Step 2: Convert to fraction form
    817,082,693.66/1,127,922,040.66 = 549,313,822.34/x
  3. Step 3: Cross multiply
    817,082,693.66x = 1,127,922,040.66 × 549,313,822.34
  4. Step 4: Simplify right side
    817,082,693.66x = 619,583,167,456,477,568
  5. Step 5: Solve for x
    x = 619,583,167,456,477,568/817,082,693.66
  6. Step 6: Final answer
    x = 758,286,979.11

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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.