Home / 783,530.34-1,081,502.93-511,640.50

Finding the Fourth Proportional to 783,530.34, 1,081,502.93 and 511,640.50

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Solution

The fourth proportional to 783,530.34, 1,081,502.93 and 511,640.50 is: 706,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,530.34 : 1,081,502.93 = 511,640.50 : x
  2. Step 2: Convert to fraction form
    783,530.34/1,081,502.93 = 511,640.50/x
  3. Step 3: Cross multiply
    783,530.34x = 1,081,502.93 × 511,640.50
  4. Step 4: Simplify right side
    783,530.34x = 553,340,699,856.67
  5. Step 5: Solve for x
    x = 553,340,699,856.67/783,530.34
  6. Step 6: Final answer
    x = 706,214.77

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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.