Home / 863,239.56-1,191,244.50-476,054.78

Finding the Fourth Proportional to 863,239.56, 1,191,244.50 and 476,054.78

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Solution

The fourth proportional to 863,239.56, 1,191,244.50 and 476,054.78 is: 656,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,239.56 : 1,191,244.50 = 476,054.78 : x
  2. Step 2: Convert to fraction form
    863,239.56/1,191,244.50 = 476,054.78/x
  3. Step 3: Cross multiply
    863,239.56x = 1,191,244.50 × 476,054.78
  4. Step 4: Simplify right side
    863,239.56x = 567,097,632,417.49
  5. Step 5: Solve for x
    x = 567,097,632,417.49/863,239.56
  6. Step 6: Final answer
    x = 656,941.20

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Half scale
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Double scale
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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.