Home / 1,457,999.70-2,186,999.55-393,149.40

Finding the Fourth Proportional to 1,457,999.70, 2,186,999.55 and 393,149.40

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Solution

The fourth proportional to 1,457,999.70, 2,186,999.55 and 393,149.40 is: 589,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,999.70 : 2,186,999.55 = 393,149.40 : x
  2. Step 2: Convert to fraction form
    1,457,999.70/2,186,999.55 = 393,149.40/x
  3. Step 3: Cross multiply
    1,457,999.70x = 2,186,999.55 × 393,149.40
  4. Step 4: Simplify right side
    1,457,999.70x = 859,817,560,882.77
  5. Step 5: Solve for x
    x = 859,817,560,882.77/1,457,999.70
  6. Step 6: Final answer
    x = 589,724.10

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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.