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Finding the Fourth Proportional to 570,218.32, 855,517.44 and 191,176.56

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Solution

The fourth proportional to 570,218.32, 855,517.44 and 191,176.56 is: 286,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,218.32 : 855,517.44 = 191,176.56 : x
  2. Step 2: Convert to fraction form
    570,218.32/855,517.44 = 191,176.56/x
  3. Step 3: Cross multiply
    570,218.32x = 855,517.44 × 191,176.56
  4. Step 4: Simplify right side
    570,218.32x = 163,554,881,199.21
  5. Step 5: Solve for x
    x = 163,554,881,199.21/570,218.32
  6. Step 6: Final answer
    x = 286,828.53

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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.