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Finding the Fourth Proportional to 683,528.60, 936,418.63 and 657,972.20

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Solution

The fourth proportional to 683,528.60, 936,418.63 and 657,972.20 is: 901,406.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,528.60 : 936,418.63 = 657,972.20 : x
  2. Step 2: Convert to fraction form
    683,528.60/936,418.63 = 657,972.20/x
  3. Step 3: Cross multiply
    683,528.60x = 936,418.63 × 657,972.20
  4. Step 4: Simplify right side
    683,528.60x = 616,137,426,102.09
  5. Step 5: Solve for x
    x = 616,137,426,102.09/683,528.60
  6. Step 6: Final answer
    x = 901,406.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.