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Finding the Fourth Proportional to 472,666.60, 708,999.90 and 323,367.40

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Solution

The fourth proportional to 472,666.60, 708,999.90 and 323,367.40 is: 485,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,666.60 : 708,999.90 = 323,367.40 : x
  2. Step 2: Convert to fraction form
    472,666.60/708,999.90 = 323,367.40/x
  3. Step 3: Cross multiply
    472,666.60x = 708,999.90 × 323,367.40
  4. Step 4: Simplify right side
    472,666.60x = 229,267,454,263.26
  5. Step 5: Solve for x
    x = 229,267,454,263.26/472,666.60
  6. Step 6: Final answer
    x = 485,051.10

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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.