Home / 1,069,900.40-1,605,628.20-439,266.80

Finding the Fourth Proportional to 1,069,900.40, 1,605,628.20 and 439,266.80

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Solution

The fourth proportional to 1,069,900.40, 1,605,628.20 and 439,266.80 is: 659,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,900.40 : 1,605,628.20 = 439,266.80 : x
  2. Step 2: Convert to fraction form
    1,069,900.40/1,605,628.20 = 439,266.80/x
  3. Step 3: Cross multiply
    1,069,900.40x = 1,605,628.20 × 439,266.80
  4. Step 4: Simplify right side
    1,069,900.40x = 705,299,161,403.76
  5. Step 5: Solve for x
    x = 705,299,161,403.76/1,069,900.40
  6. Step 6: Final answer
    x = 659,219.46

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Double scale
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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.