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Finding the Fourth Proportional to 346,688.80, 520,033.20 and 323,360.80

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Solution

The fourth proportional to 346,688.80, 520,033.20 and 323,360.80 is: 485,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,688.80 : 520,033.20 = 323,360.80 : x
  2. Step 2: Convert to fraction form
    346,688.80/520,033.20 = 323,360.80/x
  3. Step 3: Cross multiply
    346,688.80x = 520,033.20 × 323,360.80
  4. Step 4: Simplify right side
    346,688.80x = 168,158,351,578.56
  5. Step 5: Solve for x
    x = 168,158,351,578.56/346,688.80
  6. Step 6: Final answer
    x = 485,041.20

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1.5x scale

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.