Home / 1,235,405.80-1,853,108.70-437,588.20

Finding the Fourth Proportional to 1,235,405.80, 1,853,108.70 and 437,588.20

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Solution

The fourth proportional to 1,235,405.80, 1,853,108.70 and 437,588.20 is: 656,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,405.80 : 1,853,108.70 = 437,588.20 : x
  2. Step 2: Convert to fraction form
    1,235,405.80/1,853,108.70 = 437,588.20/x
  3. Step 3: Cross multiply
    1,235,405.80x = 1,853,108.70 × 437,588.20
  4. Step 4: Simplify right side
    1,235,405.80x = 810,898,500,437.34
  5. Step 5: Solve for x
    x = 810,898,500,437.34/1,235,405.80
  6. Step 6: Final answer
    x = 656,382.30

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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.