Home / 910,631.30-1,256,835.68-543,132

Finding the Fourth Proportional to 910,631.30, 1,256,835.68 and 543,132

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Solution

The fourth proportional to 910,631.30, 1,256,835.68 and 543,132 is: 749,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,631.30 : 1,256,835.68 = 543,132 : x
  2. Step 2: Convert to fraction form
    910,631.30/1,256,835.68 = 543,132/x
  3. Step 3: Cross multiply
    910,631.30x = 1,256,835.68 × 543,132
  4. Step 4: Simplify right side
    910,631.30x = 682,627,676,549.76
  5. Step 5: Solve for x
    x = 682,627,676,549.76/910,631.30
  6. Step 6: Final answer
    x = 749,620.27

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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.