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Finding the Fourth Proportional to 611,975.25, 917,995.68 and 191,283.93

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Solution

The fourth proportional to 611,975.25, 917,995.68 and 191,283.93 is: 286,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,975.25 : 917,995.68 = 191,283.93 : x
  2. Step 2: Convert to fraction form
    611,975.25/917,995.68 = 191,283.93/x
  3. Step 3: Cross multiply
    611,975.25x = 917,995.68 × 191,283.93
  4. Step 4: Simplify right side
    611,975.25x = 175,597,821,393.42
  5. Step 5: Solve for x
    x = 175,597,821,393.42/611,975.25
  6. Step 6: Final answer
    x = 286,936.15

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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.