Home / 1,209,736.89-1,669,423.77-665,861.04

Finding the Fourth Proportional to 1,209,736.89, 1,669,423.77 and 665,861.04

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Solution

The fourth proportional to 1,209,736.89, 1,669,423.77 and 665,861.04 is: 918,881.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,736.89 : 1,669,423.77 = 665,861.04 : x
  2. Step 2: Convert to fraction form
    1,209,736.89/1,669,423.77 = 665,861.04/x
  3. Step 3: Cross multiply
    1,209,736.89x = 1,669,423.77 × 665,861.04
  4. Step 4: Simplify right side
    1,209,736.89x = 1,111,604,247,692.92
  5. Step 5: Solve for x
    x = 1,111,604,247,692.92/1,209,736.89
  6. Step 6: Final answer
    x = 918,881.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.