Home / 837,146.10-1,155,229.77-455,173.20

Finding the Fourth Proportional to 837,146.10, 1,155,229.77 and 455,173.20

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Solution

The fourth proportional to 837,146.10, 1,155,229.77 and 455,173.20 is: 628,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,146.10 : 1,155,229.77 = 455,173.20 : x
  2. Step 2: Convert to fraction form
    837,146.10/1,155,229.77 = 455,173.20/x
  3. Step 3: Cross multiply
    837,146.10x = 1,155,229.77 × 455,173.20
  4. Step 4: Simplify right side
    837,146.10x = 525,829,631,146.16
  5. Step 5: Solve for x
    x = 525,829,631,146.16/837,146.10
  6. Step 6: Final answer
    x = 628,121.70

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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.