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Finding the Fourth Proportional to 623,571.20, 935,529.60 and 413,619.20

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Solution

The fourth proportional to 623,571.20, 935,529.60 and 413,619.20 is: 620,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,571.20 : 935,529.60 = 413,619.20 : x
  2. Step 2: Convert to fraction form
    623,571.20/935,529.60 = 413,619.20/x
  3. Step 3: Cross multiply
    623,571.20x = 935,529.60 × 413,619.20
  4. Step 4: Simplify right side
    623,571.20x = 386,953,004,728.32
  5. Step 5: Solve for x
    x = 386,953,004,728.32/623,571.20
  6. Step 6: Final answer
    x = 620,543.42

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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.