Home / 910,368.82-1,256,734.12-528,321.79

Finding the Fourth Proportional to 910,368.82, 1,256,734.12 and 528,321.79

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Solution

The fourth proportional to 910,368.82, 1,256,734.12 and 528,321.79 is: 729,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,368.82 : 1,256,734.12 = 528,321.79 : x
  2. Step 2: Convert to fraction form
    910,368.82/1,256,734.12 = 528,321.79/x
  3. Step 3: Cross multiply
    910,368.82x = 1,256,734.12 × 528,321.79
  4. Step 4: Simplify right side
    910,368.82x = 663,960,013,548.80
  5. Step 5: Solve for x
    x = 663,960,013,548.80/910,368.82
  6. Step 6: Final answer
    x = 729,330.80

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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.