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Finding the Fourth Proportional to 583,416.60, 873,180.90 and 423,036.60

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Solution

The fourth proportional to 583,416.60, 873,180.90 and 423,036.60 is: 633,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,416.60 : 873,180.90 = 423,036.60 : x
  2. Step 2: Convert to fraction form
    583,416.60/873,180.90 = 423,036.60/x
  3. Step 3: Cross multiply
    583,416.60x = 873,180.90 × 423,036.60
  4. Step 4: Simplify right side
    583,416.60x = 369,387,479,120.94
  5. Step 5: Solve for x
    x = 369,387,479,120.94/583,416.60
  6. Step 6: Final answer
    x = 633,145.30

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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.