Home / 893,015.78-1,232,356.86-485,114.31

Finding the Fourth Proportional to 893,015.78, 1,232,356.86 and 485,114.31

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Solution

The fourth proportional to 893,015.78, 1,232,356.86 and 485,114.31 is: 669,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,015.78 : 1,232,356.86 = 485,114.31 : x
  2. Step 2: Convert to fraction form
    893,015.78/1,232,356.86 = 485,114.31/x
  3. Step 3: Cross multiply
    893,015.78x = 1,232,356.86 × 485,114.31
  4. Step 4: Simplify right side
    893,015.78x = 597,833,947,812.67
  5. Step 5: Solve for x
    x = 597,833,947,812.67/893,015.78
  6. Step 6: Final answer
    x = 669,455.08

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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.