Home / 1,069,895.40-1,605,620.70-439,261.80

Finding the Fourth Proportional to 1,069,895.40, 1,605,620.70 and 439,261.80

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Solution

The fourth proportional to 1,069,895.40, 1,605,620.70 and 439,261.80 is: 659,211.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,895.40 : 1,605,620.70 = 439,261.80 : x
  2. Step 2: Convert to fraction form
    1,069,895.40/1,605,620.70 = 439,261.80/x
  3. Step 3: Cross multiply
    1,069,895.40x = 1,605,620.70 × 439,261.80
  4. Step 4: Simplify right side
    1,069,895.40x = 705,287,838,799.26
  5. Step 5: Solve for x
    x = 705,287,838,799.26/1,069,895.40
  6. Step 6: Final answer
    x = 659,211.96

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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.