Home / 806,905.80-1,209,840.30-333,779.40

Finding the Fourth Proportional to 806,905.80, 1,209,840.30 and 333,779.40

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Solution

The fourth proportional to 806,905.80, 1,209,840.30 and 333,779.40 is: 500,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,905.80 : 1,209,840.30 = 333,779.40 : x
  2. Step 2: Convert to fraction form
    806,905.80/1,209,840.30 = 333,779.40/x
  3. Step 3: Cross multiply
    806,905.80x = 1,209,840.30 × 333,779.40
  4. Step 4: Simplify right side
    806,905.80x = 403,819,769,429.82
  5. Step 5: Solve for x
    x = 403,819,769,429.82/806,905.80
  6. Step 6: Final answer
    x = 500,454.66

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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.