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Finding the Fourth Proportional to 608,212.40, 910,936.20 and 384,263.60

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Solution

The fourth proportional to 608,212.40, 910,936.20 and 384,263.60 is: 575,522.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,212.40 : 910,936.20 = 384,263.60 : x
  2. Step 2: Convert to fraction form
    608,212.40/910,936.20 = 384,263.60/x
  3. Step 3: Cross multiply
    608,212.40x = 910,936.20 × 384,263.60
  4. Step 4: Simplify right side
    608,212.40x = 350,039,623,582.32
  5. Step 5: Solve for x
    x = 350,039,623,582.32/608,212.40
  6. Step 6: Final answer
    x = 575,522.01

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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.