Home / 783,724.08-1,081,551.58-439,636.50

Finding the Fourth Proportional to 783,724.08, 1,081,551.58 and 439,636.50

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Solution

The fourth proportional to 783,724.08, 1,081,551.58 and 439,636.50 is: 606,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,724.08 : 1,081,551.58 = 439,636.50 : x
  2. Step 2: Convert to fraction form
    783,724.08/1,081,551.58 = 439,636.50/x
  3. Step 3: Cross multiply
    783,724.08x = 1,081,551.58 × 439,636.50
  4. Step 4: Simplify right side
    783,724.08x = 475,489,551,200.67
  5. Step 5: Solve for x
    x = 475,489,551,200.67/783,724.08
  6. Step 6: Final answer
    x = 606,705.30

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1.5x scale

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.