Home / 437,623.70-656,435.55-105,199.70

Finding the Fourth Proportional to 437,623.70, 656,435.55 and 105,199.70

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Solution

The fourth proportional to 437,623.70, 656,435.55 and 105,199.70 is: 157,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,623.70 : 656,435.55 = 105,199.70 : x
  2. Step 2: Convert to fraction form
    437,623.70/656,435.55 = 105,199.70/x
  3. Step 3: Cross multiply
    437,623.70x = 656,435.55 × 105,199.70
  4. Step 4: Simplify right side
    437,623.70x = 69,056,822,929.34
  5. Step 5: Solve for x
    x = 69,056,822,929.34/437,623.70
  6. Step 6: Final answer
    x = 157,799.55

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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.