Home / 984,626.80-1,358,501.56-640,968.50

Finding the Fourth Proportional to 984,626.80, 1,358,501.56 and 640,968.50

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Solution

The fourth proportional to 984,626.80, 1,358,501.56 and 640,968.50 is: 884,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,626.80 : 1,358,501.56 = 640,968.50 : x
  2. Step 2: Convert to fraction form
    984,626.80/1,358,501.56 = 640,968.50/x
  3. Step 3: Cross multiply
    984,626.80x = 1,358,501.56 × 640,968.50
  4. Step 4: Simplify right side
    984,626.80x = 870,756,708,954.69
  5. Step 5: Solve for x
    x = 870,756,708,954.69/984,626.80
  6. Step 6: Final answer
    x = 884,352.03

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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.