Home / 855,897.32-1,284,059.21-256,869.51

Finding the Fourth Proportional to 855,897.32, 1,284,059.21 and 256,869.51

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Solution

The fourth proportional to 855,897.32, 1,284,059.21 and 256,869.51 is: 385,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,897.32 : 1,284,059.21 = 256,869.51 : x
  2. Step 2: Convert to fraction form
    855,897.32/1,284,059.21 = 256,869.51/x
  3. Step 3: Cross multiply
    855,897.32x = 1,284,059.21 × 256,869.51
  4. Step 4: Simplify right side
    855,897.32x = 329,835,658,799.34
  5. Step 5: Solve for x
    x = 329,835,658,799.34/855,897.32
  6. Step 6: Final answer
    x = 385,368.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.