Home / 1,657,206.30-2,485,809.45-1,391,485.80

Finding the Fourth Proportional to 1,657,206.30, 2,485,809.45 and 1,391,485.80

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Solution

The fourth proportional to 1,657,206.30, 2,485,809.45 and 1,391,485.80 is: 2,087,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,206.30 : 2,485,809.45 = 1,391,485.80 : x
  2. Step 2: Convert to fraction form
    1,657,206.30/2,485,809.45 = 1,391,485.80/x
  3. Step 3: Cross multiply
    1,657,206.30x = 2,485,809.45 × 1,391,485.80
  4. Step 4: Simplify right side
    1,657,206.30x = 3,458,968,551,180.81
  5. Step 5: Solve for x
    x = 3,458,968,551,180.81/1,657,206.30
  6. Step 6: Final answer
    x = 2,087,228.70

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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.