Home / 1,187,550-1,638,922.68-651,109.68

Finding the Fourth Proportional to 1,187,550, 1,638,922.68 and 651,109.68

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Solution

The fourth proportional to 1,187,550, 1,638,922.68 and 651,109.68 is: 898,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,550 : 1,638,922.68 = 651,109.68 : x
  2. Step 2: Convert to fraction form
    1,187,550/1,638,922.68 = 651,109.68/x
  3. Step 3: Cross multiply
    1,187,550x = 1,638,922.68 × 651,109.68
  4. Step 4: Simplify right side
    1,187,550x = 1,067,118,421,719.54
  5. Step 5: Solve for x
    x = 1,067,118,421,719.54/1,187,550
  6. Step 6: Final answer
    x = 898,588.20

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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.