Home / 783,089.98-1,080,341.42-477,054.70

Finding the Fourth Proportional to 783,089.98, 1,080,341.42 and 477,054.70

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Solution

The fourth proportional to 783,089.98, 1,080,341.42 and 477,054.70 is: 658,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,089.98 : 1,080,341.42 = 477,054.70 : x
  2. Step 2: Convert to fraction form
    783,089.98/1,080,341.42 = 477,054.70/x
  3. Step 3: Cross multiply
    783,089.98x = 1,080,341.42 × 477,054.70
  4. Step 4: Simplify right side
    783,089.98x = 515,381,946,929.55
  5. Step 5: Solve for x
    x = 515,381,946,929.55/783,089.98
  6. Step 6: Final answer
    x = 658,138.86

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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.