Home / 289,072.36-433,637.42-99,507.65

Finding the Fourth Proportional to 289,072.36, 433,637.42 and 99,507.65

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Solution

The fourth proportional to 289,072.36, 433,637.42 and 99,507.65 is: 149,271.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,072.36 : 433,637.42 = 99,507.65 : x
  2. Step 2: Convert to fraction form
    289,072.36/433,637.42 = 99,507.65/x
  3. Step 3: Cross multiply
    289,072.36x = 433,637.42 × 99,507.65
  4. Step 4: Simplify right side
    289,072.36x = 43,150,238,780.19
  5. Step 5: Solve for x
    x = 43,150,238,780.19/289,072.36
  6. Step 6: Final answer
    x = 149,271.41

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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.