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Finding the Fourth Proportional to 282,368.32, 389,614.80 and 191,796.64

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Solution

The fourth proportional to 282,368.32, 389,614.80 and 191,796.64 is: 264,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,368.32 : 389,614.80 = 191,796.64 : x
  2. Step 2: Convert to fraction form
    282,368.32/389,614.80 = 191,796.64/x
  3. Step 3: Cross multiply
    282,368.32x = 389,614.80 × 191,796.64
  4. Step 4: Simplify right side
    282,368.32x = 74,726,809,534.27
  5. Step 5: Solve for x
    x = 74,726,809,534.27/282,368.32
  6. Step 6: Final answer
    x = 264,643.04

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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.