Home / 920,083.60-1,269,752.52-512,202.16

Finding the Fourth Proportional to 920,083.60, 1,269,752.52 and 512,202.16

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Solution

The fourth proportional to 920,083.60, 1,269,752.52 and 512,202.16 is: 706,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,083.60 : 1,269,752.52 = 512,202.16 : x
  2. Step 2: Convert to fraction form
    920,083.60/1,269,752.52 = 512,202.16/x
  3. Step 3: Cross multiply
    920,083.60x = 1,269,752.52 × 512,202.16
  4. Step 4: Simplify right side
    920,083.60x = 650,369,983,409.44
  5. Step 5: Solve for x
    x = 650,369,983,409.44/920,083.60
  6. Step 6: Final answer
    x = 706,859.66

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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.