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Finding the Fourth Proportional to 546,039.81, 819,428.78 and 191,056.91

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Solution

The fourth proportional to 546,039.81, 819,428.78 and 191,056.91 is: 286,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,039.81 : 819,428.78 = 191,056.91 : x
  2. Step 2: Convert to fraction form
    546,039.81/819,428.78 = 191,056.91/x
  3. Step 3: Cross multiply
    546,039.81x = 819,428.78 × 191,056.91
  4. Step 4: Simplify right side
    546,039.81x = 156,557,525,619.44
  5. Step 5: Solve for x
    x = 156,557,525,619.44/546,039.81
  6. Step 6: Final answer
    x = 286,714.49

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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.