Home / 1,188,753.19-1,640,341.00-665,492.45

Finding the Fourth Proportional to 1,188,753.19, 1,640,341.00 and 665,492.45

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Solution

The fourth proportional to 1,188,753.19, 1,640,341.00 and 665,492.45 is: 918,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,753.19 : 1,640,341.00 = 665,492.45 : x
  2. Step 2: Convert to fraction form
    1,188,753.19/1,640,341.00 = 665,492.45/x
  3. Step 3: Cross multiply
    1,188,753.19x = 1,640,341.00 × 665,492.45
  4. Step 4: Simplify right side
    1,188,753.19x = 1,091,634,548,315.73
  5. Step 5: Solve for x
    x = 1,091,634,548,315.73/1,188,753.19
  6. Step 6: Final answer
    x = 918,302.10

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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.