Home / 943,583.14-1,302,135.78-513,870.45

Finding the Fourth Proportional to 943,583.14, 1,302,135.78 and 513,870.45

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Solution

The fourth proportional to 943,583.14, 1,302,135.78 and 513,870.45 is: 709,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,583.14 : 1,302,135.78 = 513,870.45 : x
  2. Step 2: Convert to fraction form
    943,583.14/1,302,135.78 = 513,870.45/x
  3. Step 3: Cross multiply
    943,583.14x = 1,302,135.78 × 513,870.45
  4. Step 4: Simplify right side
    943,583.14x = 669,129,099,229.70
  5. Step 5: Solve for x
    x = 669,129,099,229.70/943,583.14
  6. Step 6: Final answer
    x = 709,136.35

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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.