Home / 289,944.08-434,412.60-156,915.92

Finding the Fourth Proportional to 289,944.08, 434,412.60 and 156,915.92

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Solution

The fourth proportional to 289,944.08, 434,412.60 and 156,915.92 is: 235,101.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,944.08 : 434,412.60 = 156,915.92 : x
  2. Step 2: Convert to fraction form
    289,944.08/434,412.60 = 156,915.92/x
  3. Step 3: Cross multiply
    289,944.08x = 434,412.60 × 156,915.92
  4. Step 4: Simplify right side
    289,944.08x = 68,166,252,788.59
  5. Step 5: Solve for x
    x = 68,166,252,788.59/289,944.08
  6. Step 6: Final answer
    x = 235,101.38

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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.