Home / 511,983.45-767,946.47-156,996.50

Finding the Fourth Proportional to 511,983.45, 767,946.47 and 156,996.50

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Solution

The fourth proportional to 511,983.45, 767,946.47 and 156,996.50 is: 235,485.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,983.45 : 767,946.47 = 156,996.50 : x
  2. Step 2: Convert to fraction form
    511,983.45/767,946.47 = 156,996.50/x
  3. Step 3: Cross multiply
    511,983.45x = 767,946.47 × 156,996.50
  4. Step 4: Simplify right side
    511,983.45x = 120,564,905,490.05
  5. Step 5: Solve for x
    x = 120,564,905,490.05/511,983.45
  6. Step 6: Final answer
    x = 235,485.94

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Double scale
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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.