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Finding the Fourth Proportional to 614,817.70, 848,600.55 and 418,908.28

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Solution

The fourth proportional to 614,817.70, 848,600.55 and 418,908.28 is: 578,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,817.70 : 848,600.55 = 418,908.28 : x
  2. Step 2: Convert to fraction form
    614,817.70/848,600.55 = 418,908.28/x
  3. Step 3: Cross multiply
    614,817.70x = 848,600.55 × 418,908.28
  4. Step 4: Simplify right side
    614,817.70x = 355,485,796,807.55
  5. Step 5: Solve for x
    x = 355,485,796,807.55/614,817.70
  6. Step 6: Final answer
    x = 578,197.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.