Home / 915,289.28-1,263,239.01-584,288.20

Finding the Fourth Proportional to 915,289.28, 1,263,239.01 and 584,288.20

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Solution

The fourth proportional to 915,289.28, 1,263,239.01 and 584,288.20 is: 806,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,289.28 : 1,263,239.01 = 584,288.20 : x
  2. Step 2: Convert to fraction form
    915,289.28/1,263,239.01 = 584,288.20/x
  3. Step 3: Cross multiply
    915,289.28x = 1,263,239.01 × 584,288.20
  4. Step 4: Simplify right side
    915,289.28x = 738,095,648,901.73
  5. Step 5: Solve for x
    x = 738,095,648,901.73/915,289.28
  6. Step 6: Final answer
    x = 806,406.96

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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.