Home / 986,458.50-1,361,313.64-556,729.40

Finding the Fourth Proportional to 986,458.50, 1,361,313.64 and 556,729.40

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Solution

The fourth proportional to 986,458.50, 1,361,313.64 and 556,729.40 is: 768,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,458.50 : 1,361,313.64 = 556,729.40 : x
  2. Step 2: Convert to fraction form
    986,458.50/1,361,313.64 = 556,729.40/x
  3. Step 3: Cross multiply
    986,458.50x = 1,361,313.64 × 556,729.40
  4. Step 4: Simplify right side
    986,458.50x = 757,883,330,108.21
  5. Step 5: Solve for x
    x = 757,883,330,108.21/986,458.50
  6. Step 6: Final answer
    x = 768,287.09

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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.