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Finding the Fourth Proportional to 830,831.10, 1,246,246.65 and 830,831.10

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Solution

The fourth proportional to 830,831.10, 1,246,246.65 and 830,831.10 is: 1,246,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,831.10 : 1,246,246.65 = 830,831.10 : x
  2. Step 2: Convert to fraction form
    830,831.10/1,246,246.65 = 830,831.10/x
  3. Step 3: Cross multiply
    830,831.10x = 1,246,246.65 × 830,831.10
  4. Step 4: Simplify right side
    830,831.10x = 1,035,420,475,090.82
  5. Step 5: Solve for x
    x = 1,035,420,475,090.82/830,831.10
  6. Step 6: Final answer
    x = 1,246,246.65

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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.