Home / 811,515.51-1,119,211.83-608,044.32

Finding the Fourth Proportional to 811,515.51, 1,119,211.83 and 608,044.32

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Solution

The fourth proportional to 811,515.51, 1,119,211.83 and 608,044.32 is: 838,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,515.51 : 1,119,211.83 = 608,044.32 : x
  2. Step 2: Convert to fraction form
    811,515.51/1,119,211.83 = 608,044.32/x
  3. Step 3: Cross multiply
    811,515.51x = 1,119,211.83 × 608,044.32
  4. Step 4: Simplify right side
    811,515.51x = 680,530,396,108.31
  5. Step 5: Solve for x
    x = 680,530,396,108.31/811,515.51
  6. Step 6: Final answer
    x = 838,591.98

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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.