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Finding the Fourth Proportional to 637,491.78, 956,412.30 and 188,212.50

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Solution

The fourth proportional to 637,491.78, 956,412.30 and 188,212.50 is: 282,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,491.78 : 956,412.30 = 188,212.50 : x
  2. Step 2: Convert to fraction form
    637,491.78/956,412.30 = 188,212.50/x
  3. Step 3: Cross multiply
    637,491.78x = 956,412.30 × 188,212.50
  4. Step 4: Simplify right side
    637,491.78x = 180,008,750,013.75
  5. Step 5: Solve for x
    x = 180,008,750,013.75/637,491.78
  6. Step 6: Final answer
    x = 282,370.31

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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.