Home / 810,210.54-1,118,074.95-447,650.22

Finding the Fourth Proportional to 810,210.54, 1,118,074.95 and 447,650.22

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Solution

The fourth proportional to 810,210.54, 1,118,074.95 and 447,650.22 is: 617,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,210.54 : 1,118,074.95 = 447,650.22 : x
  2. Step 2: Convert to fraction form
    810,210.54/1,118,074.95 = 447,650.22/x
  3. Step 3: Cross multiply
    810,210.54x = 1,118,074.95 × 447,650.22
  4. Step 4: Simplify right side
    810,210.54x = 500,506,497,343.99
  5. Step 5: Solve for x
    x = 500,506,497,343.99/810,210.54
  6. Step 6: Final answer
    x = 617,748.69

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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.