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Finding the Fourth Proportional to 575,384.40, 863,465.40 and 322,664.40

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Solution

The fourth proportional to 575,384.40, 863,465.40 and 322,664.40 is: 484,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,384.40 : 863,465.40 = 322,664.40 : x
  2. Step 2: Convert to fraction form
    575,384.40/863,465.40 = 322,664.40/x
  3. Step 3: Cross multiply
    575,384.40x = 863,465.40 × 322,664.40
  4. Step 4: Simplify right side
    575,384.40x = 278,609,545,211.76
  5. Step 5: Solve for x
    x = 278,609,545,211.76/575,384.40
  6. Step 6: Final answer
    x = 484,214.63

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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.