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Finding the Fourth Proportional to 834,718.66, 1,151,911.90 and 472,134.71

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Solution

The fourth proportional to 834,718.66, 1,151,911.90 and 472,134.71 is: 651,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,718.66 : 1,151,911.90 = 472,134.71 : x
  2. Step 2: Convert to fraction form
    834,718.66/1,151,911.90 = 472,134.71/x
  3. Step 3: Cross multiply
    834,718.66x = 1,151,911.90 × 472,134.71
  4. Step 4: Simplify right side
    834,718.66x = 543,857,590,852.05
  5. Step 5: Solve for x
    x = 543,857,590,852.05/834,718.66
  6. Step 6: Final answer
    x = 651,545.98

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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.