Home / 289,528.48-434,020.56-156,208.96

Finding the Fourth Proportional to 289,528.48, 434,020.56 and 156,208.96

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Solution

The fourth proportional to 289,528.48, 434,020.56 and 156,208.96 is: 234,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,528.48 : 434,020.56 = 156,208.96 : x
  2. Step 2: Convert to fraction form
    289,528.48/434,020.56 = 156,208.96/x
  3. Step 3: Cross multiply
    289,528.48x = 434,020.56 × 156,208.96
  4. Step 4: Simplify right side
    289,528.48x = 67,797,900,296.22
  5. Step 5: Solve for x
    x = 67,797,900,296.22/289,528.48
  6. Step 6: Final answer
    x = 234,166.60

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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.