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Finding the Fourth Proportional to 288,998.01, 433,533.94 and 111,555.77

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Solution

The fourth proportional to 288,998.01, 433,533.94 and 111,555.77 is: 167,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,998.01 : 433,533.94 = 111,555.77 : x
  2. Step 2: Convert to fraction form
    288,998.01/433,533.94 = 111,555.77/x
  3. Step 3: Cross multiply
    288,998.01x = 433,533.94 × 111,555.77
  4. Step 4: Simplify right side
    288,998.01x = 48,363,210,051.27
  5. Step 5: Solve for x
    x = 48,363,210,051.27/288,998.01
  6. Step 6: Final answer
    x = 167,347.90

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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.