Home / 854,984.30-1,281,828.45-434,561.90

Finding the Fourth Proportional to 854,984.30, 1,281,828.45 and 434,561.90

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Solution

The fourth proportional to 854,984.30, 1,281,828.45 and 434,561.90 is: 651,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,984.30 : 1,281,828.45 = 434,561.90 : x
  2. Step 2: Convert to fraction form
    854,984.30/1,281,828.45 = 434,561.90/x
  3. Step 3: Cross multiply
    854,984.30x = 1,281,828.45 × 434,561.90
  4. Step 4: Simplify right side
    854,984.30x = 557,033,806,706.06
  5. Step 5: Solve for x
    x = 557,033,806,706.06/854,984.30
  6. Step 6: Final answer
    x = 651,513.49

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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.