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Finding the Fourth Proportional to 346,553.20, 520,024.20 and 146,839.60

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Solution

The fourth proportional to 346,553.20, 520,024.20 and 146,839.60 is: 220,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,553.20 : 520,024.20 = 146,839.60 : x
  2. Step 2: Convert to fraction form
    346,553.20/520,024.20 = 146,839.60/x
  3. Step 3: Cross multiply
    346,553.20x = 520,024.20 × 146,839.60
  4. Step 4: Simplify right side
    346,553.20x = 76,360,145,518.32
  5. Step 5: Solve for x
    x = 76,360,145,518.32/346,553.20
  6. Step 6: Final answer
    x = 220,341.77

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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.