Home / 668,917.02-923,100.75-362,985.60

Finding the Fourth Proportional to 668,917.02, 923,100.75 and 362,985.60

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Solution

The fourth proportional to 668,917.02, 923,100.75 and 362,985.60 is: 500,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,917.02 : 923,100.75 = 362,985.60 : x
  2. Step 2: Convert to fraction form
    668,917.02/923,100.75 = 362,985.60/x
  3. Step 3: Cross multiply
    668,917.02x = 923,100.75 × 362,985.60
  4. Step 4: Simplify right side
    668,917.02x = 335,072,279,599.20
  5. Step 5: Solve for x
    x = 335,072,279,599.20/668,917.02
  6. Step 6: Final answer
    x = 500,917.56

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Double scale
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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.