Home / 746,900-1,031,581.84-543,858.72

Finding the Fourth Proportional to 746,900, 1,031,581.84 and 543,858.72

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Solution

The fourth proportional to 746,900, 1,031,581.84 and 543,858.72 is: 751,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,900 : 1,031,581.84 = 543,858.72 : x
  2. Step 2: Convert to fraction form
    746,900/1,031,581.84 = 543,858.72/x
  3. Step 3: Cross multiply
    746,900x = 1,031,581.84 × 543,858.72
  4. Step 4: Simplify right side
    746,900x = 561,034,779,077.65
  5. Step 5: Solve for x
    x = 561,034,779,077.65/746,900
  6. Step 6: Final answer
    x = 751,151.13

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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.