Home / 919,221.12-1,268,458.56-575,210.88

Finding the Fourth Proportional to 919,221.12, 1,268,458.56 and 575,210.88

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Solution

The fourth proportional to 919,221.12, 1,268,458.56 and 575,210.88 is: 793,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,221.12 : 1,268,458.56 = 575,210.88 : x
  2. Step 2: Convert to fraction form
    919,221.12/1,268,458.56 = 575,210.88/x
  3. Step 3: Cross multiply
    919,221.12x = 1,268,458.56 × 575,210.88
  4. Step 4: Simplify right side
    919,221.12x = 729,631,164,541.13
  5. Step 5: Solve for x
    x = 729,631,164,541.13/919,221.12
  6. Step 6: Final answer
    x = 793,749.35

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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.