Home / 652,100.13-899,683.07-393,880.59

Finding the Fourth Proportional to 652,100.13, 899,683.07 and 393,880.59

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Solution

The fourth proportional to 652,100.13, 899,683.07 and 393,880.59 is: 543,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,100.13 : 899,683.07 = 393,880.59 : x
  2. Step 2: Convert to fraction form
    652,100.13/899,683.07 = 393,880.59/x
  3. Step 3: Cross multiply
    652,100.13x = 899,683.07 × 393,880.59
  4. Step 4: Simplify right side
    652,100.13x = 354,367,696,455.21
  5. Step 5: Solve for x
    x = 354,367,696,455.21/652,100.13
  6. Step 6: Final answer
    x = 543,425.28

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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.