Home / 859,638.80-1,186,231.56-537,129.20

Finding the Fourth Proportional to 859,638.80, 1,186,231.56 and 537,129.20

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Solution

The fourth proportional to 859,638.80, 1,186,231.56 and 537,129.20 is: 741,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,638.80 : 1,186,231.56 = 537,129.20 : x
  2. Step 2: Convert to fraction form
    859,638.80/1,186,231.56 = 537,129.20/x
  3. Step 3: Cross multiply
    859,638.80x = 1,186,231.56 × 537,129.20
  4. Step 4: Simplify right side
    859,638.80x = 637,159,608,837.55
  5. Step 5: Solve for x
    x = 637,159,608,837.55/859,638.80
  6. Step 6: Final answer
    x = 741,194.57

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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.