Home / 285,449.04-393,905.48-156,388.01

Finding the Fourth Proportional to 285,449.04, 393,905.48 and 156,388.01

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Solution

The fourth proportional to 285,449.04, 393,905.48 and 156,388.01 is: 215,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,449.04 : 393,905.48 = 156,388.01 : x
  2. Step 2: Convert to fraction form
    285,449.04/393,905.48 = 156,388.01/x
  3. Step 3: Cross multiply
    285,449.04x = 393,905.48 × 156,388.01
  4. Step 4: Simplify right side
    285,449.04x = 61,602,091,393.83
  5. Step 5: Solve for x
    x = 61,602,091,393.83/285,449.04
  6. Step 6: Final answer
    x = 215,807.67

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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.