Home / 910,091.70-1,256,176.35-528,241.50

Finding the Fourth Proportional to 910,091.70, 1,256,176.35 and 528,241.50

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Solution

The fourth proportional to 910,091.70, 1,256,176.35 and 528,241.50 is: 729,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,091.70 : 1,256,176.35 = 528,241.50 : x
  2. Step 2: Convert to fraction form
    910,091.70/1,256,176.35 = 528,241.50/x
  3. Step 3: Cross multiply
    910,091.70x = 1,256,176.35 × 528,241.50
  4. Step 4: Simplify right side
    910,091.70x = 663,564,479,388.53
  5. Step 5: Solve for x
    x = 663,564,479,388.53/910,091.70
  6. Step 6: Final answer
    x = 729,118.26

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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.