Home / 837,518.40-1,256,277.60-518,653.80

Finding the Fourth Proportional to 837,518.40, 1,256,277.60 and 518,653.80

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Solution

The fourth proportional to 837,518.40, 1,256,277.60 and 518,653.80 is: 777,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,518.40 : 1,256,277.60 = 518,653.80 : x
  2. Step 2: Convert to fraction form
    837,518.40/1,256,277.60 = 518,653.80/x
  3. Step 3: Cross multiply
    837,518.40x = 1,256,277.60 × 518,653.80
  4. Step 4: Simplify right side
    837,518.40x = 651,573,151,094.88
  5. Step 5: Solve for x
    x = 651,573,151,094.88/837,518.40
  6. Step 6: Final answer
    x = 777,980.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.