Home / 838,438.70-1,256,083.40-650,531.66

Finding the Fourth Proportional to 838,438.70, 1,256,083.40 and 650,531.66

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Solution

The fourth proportional to 838,438.70, 1,256,083.40 and 650,531.66 is: 974,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,438.70 : 1,256,083.40 = 650,531.66 : x
  2. Step 2: Convert to fraction form
    838,438.70/1,256,083.40 = 650,531.66/x
  3. Step 3: Cross multiply
    838,438.70x = 1,256,083.40 × 650,531.66
  4. Step 4: Simplify right side
    838,438.70x = 817,122,014,646.36
  5. Step 5: Solve for x
    x = 817,122,014,646.36/838,438.70
  6. Step 6: Final answer
    x = 974,575.74

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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.