Home / 919,607.20-1,379,394.70-413,810.19

Finding the Fourth Proportional to 919,607.20, 1,379,394.70 and 413,810.19

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Solution

The fourth proportional to 919,607.20, 1,379,394.70 and 413,810.19 is: 620,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,607.20 : 1,379,394.70 = 413,810.19 : x
  2. Step 2: Convert to fraction form
    919,607.20/1,379,394.70 = 413,810.19/x
  3. Step 3: Cross multiply
    919,607.20x = 1,379,394.70 × 413,810.19
  4. Step 4: Simplify right side
    919,607.20x = 570,807,581,857.47
  5. Step 5: Solve for x
    x = 570,807,581,857.47/919,607.20
  6. Step 6: Final answer
    x = 620,708.04

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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.