Home / 289,532.03-434,356.10-99,999.35

Finding the Fourth Proportional to 289,532.03, 434,356.10 and 99,999.35

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Solution

The fourth proportional to 289,532.03, 434,356.10 and 99,999.35 is: 150,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,532.03 : 434,356.10 = 99,999.35 : x
  2. Step 2: Convert to fraction form
    289,532.03/434,356.10 = 99,999.35/x
  3. Step 3: Cross multiply
    289,532.03x = 434,356.10 × 99,999.35
  4. Step 4: Simplify right side
    289,532.03x = 43,435,327,668.54
  5. Step 5: Solve for x
    x = 43,435,327,668.54/289,532.03
  6. Step 6: Final answer
    x = 150,019.08

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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.