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Finding the Fourth Proportional to 648,837.70, 888,892.80 and 624,579.06

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Solution

The fourth proportional to 648,837.70, 888,892.80 and 624,579.06 is: 855,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,837.70 : 888,892.80 = 624,579.06 : x
  2. Step 2: Convert to fraction form
    648,837.70/888,892.80 = 624,579.06/x
  3. Step 3: Cross multiply
    648,837.70x = 888,892.80 × 624,579.06
  4. Step 4: Simplify right side
    648,837.70x = 555,183,829,464.77
  5. Step 5: Solve for x
    x = 555,183,829,464.77/648,837.70
  6. Step 6: Final answer
    x = 855,659.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.