Home / 810,223.90-1,118,120.71-447,656.10

Finding the Fourth Proportional to 810,223.90, 1,118,120.71 and 447,656.10

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Solution

The fourth proportional to 810,223.90, 1,118,120.71 and 447,656.10 is: 617,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,223.90 : 1,118,120.71 = 447,656.10 : x
  2. Step 2: Convert to fraction form
    810,223.90/1,118,120.71 = 447,656.10/x
  3. Step 3: Cross multiply
    810,223.90x = 1,118,120.71 × 447,656.10
  4. Step 4: Simplify right side
    810,223.90x = 500,533,558,184.52
  5. Step 5: Solve for x
    x = 500,533,558,184.52/810,223.90
  6. Step 6: Final answer
    x = 617,771.90

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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.