Home / 921,440.46-1,271,153.07-539,230.62

Finding the Fourth Proportional to 921,440.46, 1,271,153.07 and 539,230.62

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Solution

The fourth proportional to 921,440.46, 1,271,153.07 and 539,230.62 is: 743,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,440.46 : 1,271,153.07 = 539,230.62 : x
  2. Step 2: Convert to fraction form
    921,440.46/1,271,153.07 = 539,230.62/x
  3. Step 3: Cross multiply
    921,440.46x = 1,271,153.07 × 539,230.62
  4. Step 4: Simplify right side
    921,440.46x = 685,444,658,051.00
  5. Step 5: Solve for x
    x = 685,444,658,051.00/921,440.46
  6. Step 6: Final answer
    x = 743,883.83

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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.