Home / 811,109.68-1,217,020.14-384,953.26

Finding the Fourth Proportional to 811,109.68, 1,217,020.14 and 384,953.26

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Solution

The fourth proportional to 811,109.68, 1,217,020.14 and 384,953.26 is: 577,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,109.68 : 1,217,020.14 = 384,953.26 : x
  2. Step 2: Convert to fraction form
    811,109.68/1,217,020.14 = 384,953.26/x
  3. Step 3: Cross multiply
    811,109.68x = 1,217,020.14 × 384,953.26
  4. Step 4: Simplify right side
    811,109.68x = 468,495,870,378.66
  5. Step 5: Solve for x
    x = 468,495,870,378.66/811,109.68
  6. Step 6: Final answer
    x = 577,598.67

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Double scale
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1.5x scale

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.