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Finding the Fourth Proportional to 612,705.39, 919,088.07 and 233,555.46

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Solution

The fourth proportional to 612,705.39, 919,088.07 and 233,555.46 is: 350,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,705.39 : 919,088.07 = 233,555.46 : x
  2. Step 2: Convert to fraction form
    612,705.39/919,088.07 = 233,555.46/x
  3. Step 3: Cross multiply
    612,705.39x = 919,088.07 × 233,555.46
  4. Step 4: Simplify right side
    612,705.39x = 214,658,036,969.36
  5. Step 5: Solve for x
    x = 214,658,036,969.36/612,705.39
  6. Step 6: Final answer
    x = 350,344.62

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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.