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Finding the Fourth Proportional to 922,973.60, 1,385,079.60 and 323,933.60

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Solution

The fourth proportional to 922,973.60, 1,385,079.60 and 323,933.60 is: 486,117.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,973.60 : 1,385,079.60 = 323,933.60 : x
  2. Step 2: Convert to fraction form
    922,973.60/1,385,079.60 = 323,933.60/x
  3. Step 3: Cross multiply
    922,973.60x = 1,385,079.60 × 323,933.60
  4. Step 4: Simplify right side
    922,973.60x = 448,673,821,114.56
  5. Step 5: Solve for x
    x = 448,673,821,114.56/922,973.60
  6. Step 6: Final answer
    x = 486,117.72

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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.