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Finding the Fourth Proportional to 383,554.81, 575,355.28 and 117,317.63

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Solution

The fourth proportional to 383,554.81, 575,355.28 and 117,317.63 is: 175,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,554.81 : 575,355.28 = 117,317.63 : x
  2. Step 2: Convert to fraction form
    383,554.81/575,355.28 = 117,317.63/x
  3. Step 3: Cross multiply
    383,554.81x = 575,355.28 × 117,317.63
  4. Step 4: Simplify right side
    383,554.81x = 67,499,317,857.59
  5. Step 5: Solve for x
    x = 67,499,317,857.59/383,554.81
  6. Step 6: Final answer
    x = 175,983.50

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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.