Home / 919,201.71-1,268,534.46-556,420.33

Finding the Fourth Proportional to 919,201.71, 1,268,534.46 and 556,420.33

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Solution

The fourth proportional to 919,201.71, 1,268,534.46 and 556,420.33 is: 767,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,201.71 : 1,268,534.46 = 556,420.33 : x
  2. Step 2: Convert to fraction form
    919,201.71/1,268,534.46 = 556,420.33/x
  3. Step 3: Cross multiply
    919,201.71x = 1,268,534.46 × 556,420.33
  4. Step 4: Simplify right side
    919,201.71x = 705,838,362,849.57
  5. Step 5: Solve for x
    x = 705,838,362,849.57/919,201.71
  6. Step 6: Final answer
    x = 767,881.91

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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.