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Finding the Fourth Proportional to 695,150.81, 959,228.82 and 389,184.65

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Solution

The fourth proportional to 695,150.81, 959,228.82 and 389,184.65 is: 537,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,150.81 : 959,228.82 = 389,184.65 : x
  2. Step 2: Convert to fraction form
    695,150.81/959,228.82 = 389,184.65/x
  3. Step 3: Cross multiply
    695,150.81x = 959,228.82 × 389,184.65
  4. Step 4: Simplify right side
    695,150.81x = 373,317,127,785.47
  5. Step 5: Solve for x
    x = 373,317,127,785.47/695,150.81
  6. Step 6: Final answer
    x = 537,030.42

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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.