Home / 943,708.38-1,302,310.89-513,987.18

Finding the Fourth Proportional to 943,708.38, 1,302,310.89 and 513,987.18

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Solution

The fourth proportional to 943,708.38, 1,302,310.89 and 513,987.18 is: 709,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,708.38 : 1,302,310.89 = 513,987.18 : x
  2. Step 2: Convert to fraction form
    943,708.38/1,302,310.89 = 513,987.18/x
  3. Step 3: Cross multiply
    943,708.38x = 1,302,310.89 × 513,987.18
  4. Step 4: Simplify right side
    943,708.38x = 669,371,101,834.39
  5. Step 5: Solve for x
    x = 669,371,101,834.39/943,708.38
  6. Step 6: Final answer
    x = 709,298.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.