Home / 910,861.92-1,257,100.28-528,888.69

Finding the Fourth Proportional to 910,861.92, 1,257,100.28 and 528,888.69

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Solution

The fourth proportional to 910,861.92, 1,257,100.28 and 528,888.69 is: 729,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,861.92 : 1,257,100.28 = 528,888.69 : x
  2. Step 2: Convert to fraction form
    910,861.92/1,257,100.28 = 528,888.69/x
  3. Step 3: Cross multiply
    910,861.92x = 1,257,100.28 × 528,888.69
  4. Step 4: Simplify right side
    910,861.92x = 664,866,117,643.39
  5. Step 5: Solve for x
    x = 664,866,117,643.39/910,861.92
  6. Step 6: Final answer
    x = 729,930.74

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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.