Home / 910,126.76-1,256,224.77-528,276.56

Finding the Fourth Proportional to 910,126.76, 1,256,224.77 and 528,276.56

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Solution

The fourth proportional to 910,126.76, 1,256,224.77 and 528,276.56 is: 729,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,126.76 : 1,256,224.77 = 528,276.56 : x
  2. Step 2: Convert to fraction form
    910,126.76/1,256,224.77 = 528,276.56/x
  3. Step 3: Cross multiply
    910,126.76x = 1,256,224.77 × 528,276.56
  4. Step 4: Simplify right side
    910,126.76x = 663,634,100,082.39
  5. Step 5: Solve for x
    x = 663,634,100,082.39/910,126.76
  6. Step 6: Final answer
    x = 729,166.67

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Half scale
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Double scale
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Similar ratio
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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.