Home / 405,339.18-608,008.56-105,817.17

Finding the Fourth Proportional to 405,339.18, 608,008.56 and 105,817.17

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Solution

The fourth proportional to 405,339.18, 608,008.56 and 105,817.17 is: 158,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,339.18 : 608,008.56 = 105,817.17 : x
  2. Step 2: Convert to fraction form
    405,339.18/608,008.56 = 105,817.17/x
  3. Step 3: Cross multiply
    405,339.18x = 608,008.56 × 105,817.17
  4. Step 4: Simplify right side
    405,339.18x = 64,337,745,154.98
  5. Step 5: Solve for x
    x = 64,337,745,154.98/405,339.18
  6. Step 6: Final answer
    x = 158,725.70

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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.