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Finding the Fourth Proportional to 466,666.52, 643,966.40 and 262,706.90

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Solution

The fourth proportional to 466,666.52, 643,966.40 and 262,706.90 is: 362,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,666.52 : 643,966.40 = 262,706.90 : x
  2. Step 2: Convert to fraction form
    466,666.52/643,966.40 = 262,706.90/x
  3. Step 3: Cross multiply
    466,666.52x = 643,966.40 × 262,706.90
  4. Step 4: Simplify right side
    466,666.52x = 169,174,414,085.10
  5. Step 5: Solve for x
    x = 169,174,414,085.10/466,666.52
  6. Step 6: Final answer
    x = 362,516.72

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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.