Home / 928,143.40-1,390,886.70-527,938.60

Finding the Fourth Proportional to 928,143.40, 1,390,886.70 and 527,938.60

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Solution

The fourth proportional to 928,143.40, 1,390,886.70 and 527,938.60 is: 791,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,143.40 : 1,390,886.70 = 527,938.60 : x
  2. Step 2: Convert to fraction form
    928,143.40/1,390,886.70 = 527,938.60/x
  3. Step 3: Cross multiply
    928,143.40x = 1,390,886.70 × 527,938.60
  4. Step 4: Simplify right side
    928,143.40x = 734,302,777,156.62
  5. Step 5: Solve for x
    x = 734,302,777,156.62/928,143.40
  6. Step 6: Final answer
    x = 791,152.29

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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.