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Finding the Fourth Proportional to 683,529.60, 936,420 and 657,973.20

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Solution

The fourth proportional to 683,529.60, 936,420 and 657,973.20 is: 901,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,529.60 : 936,420 = 657,973.20 : x
  2. Step 2: Convert to fraction form
    683,529.60/936,420 = 657,973.20/x
  3. Step 3: Cross multiply
    683,529.60x = 936,420 × 657,973.20
  4. Step 4: Simplify right side
    683,529.60x = 616,139,263,944
  5. Step 5: Solve for x
    x = 616,139,263,944/683,529.60
  6. Step 6: Final answer
    x = 901,408.31

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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.