Home / 405,258.28-559,257.10-223,970.16

Finding the Fourth Proportional to 405,258.28, 559,257.10 and 223,970.16

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Solution

The fourth proportional to 405,258.28, 559,257.10 and 223,970.16 is: 309,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,258.28 : 559,257.10 = 223,970.16 : x
  2. Step 2: Convert to fraction form
    405,258.28/559,257.10 = 223,970.16/x
  3. Step 3: Cross multiply
    405,258.28x = 559,257.10 × 223,970.16
  4. Step 4: Simplify right side
    405,258.28x = 125,256,902,168.14
  5. Step 5: Solve for x
    x = 125,256,902,168.14/405,258.28
  6. Step 6: Final answer
    x = 309,079.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.