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Finding the Fourth Proportional to 611,960.16, 917,940.06 and 191,236.08

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Solution

The fourth proportional to 611,960.16, 917,940.06 and 191,236.08 is: 286,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,960.16 : 917,940.06 = 191,236.08 : x
  2. Step 2: Convert to fraction form
    611,960.16/917,940.06 = 191,236.08/x
  3. Step 3: Cross multiply
    611,960.16x = 917,940.06 × 191,236.08
  4. Step 4: Simplify right side
    611,960.16x = 175,543,258,749.37
  5. Step 5: Solve for x
    x = 175,543,258,749.37/611,960.16
  6. Step 6: Final answer
    x = 286,854.06

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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.