Home / 288,743.52-432,918.18-153,827.76

Finding the Fourth Proportional to 288,743.52, 432,918.18 and 153,827.76

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Solution

The fourth proportional to 288,743.52, 432,918.18 and 153,827.76 is: 230,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,743.52 : 432,918.18 = 153,827.76 : x
  2. Step 2: Convert to fraction form
    288,743.52/432,918.18 = 153,827.76/x
  3. Step 3: Cross multiply
    288,743.52x = 432,918.18 × 153,827.76
  4. Step 4: Simplify right side
    288,743.52x = 66,594,833,892.68
  5. Step 5: Solve for x
    x = 66,594,833,892.68/288,743.52
  6. Step 6: Final answer
    x = 230,636.64

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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.