Home / 509,035.20-763,358.40-153,931.20

Finding the Fourth Proportional to 509,035.20, 763,358.40 and 153,931.20

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Solution

The fourth proportional to 509,035.20, 763,358.40 and 153,931.20 is: 230,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,035.20 : 763,358.40 = 153,931.20 : x
  2. Step 2: Convert to fraction form
    509,035.20/763,358.40 = 153,931.20/x
  3. Step 3: Cross multiply
    509,035.20x = 763,358.40 × 153,931.20
  4. Step 4: Simplify right side
    509,035.20x = 117,504,674,542.08
  5. Step 5: Solve for x
    x = 117,504,674,542.08/509,035.20
  6. Step 6: Final answer
    x = 230,838.01

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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.