Home / 921,986.84-1,272,337.11-534,880.55

Finding the Fourth Proportional to 921,986.84, 1,272,337.11 and 534,880.55

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Solution

The fourth proportional to 921,986.84, 1,272,337.11 and 534,880.55 is: 738,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,986.84 : 1,272,337.11 = 534,880.55 : x
  2. Step 2: Convert to fraction form
    921,986.84/1,272,337.11 = 534,880.55/x
  3. Step 3: Cross multiply
    921,986.84x = 1,272,337.11 × 534,880.55
  4. Step 4: Simplify right side
    921,986.84x = 680,548,366,820.53
  5. Step 5: Solve for x
    x = 680,548,366,820.53/921,986.84
  6. Step 6: Final answer
    x = 738,132.41

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Double scale
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Similar ratio
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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.