Home / 1,457,999.20-2,186,998.80-393,148.90

Finding the Fourth Proportional to 1,457,999.20, 2,186,998.80 and 393,148.90

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Solution

The fourth proportional to 1,457,999.20, 2,186,998.80 and 393,148.90 is: 589,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,999.20 : 2,186,998.80 = 393,148.90 : x
  2. Step 2: Convert to fraction form
    1,457,999.20/2,186,998.80 = 393,148.90/x
  3. Step 3: Cross multiply
    1,457,999.20x = 2,186,998.80 × 393,148.90
  4. Step 4: Simplify right side
    1,457,999.20x = 859,816,172,521.32
  5. Step 5: Solve for x
    x = 859,816,172,521.32/1,457,999.20
  6. Step 6: Final answer
    x = 589,723.35

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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.