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Finding the Fourth Proportional to 310,656.33, 428,697.23 and 174,686.76

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Solution

The fourth proportional to 310,656.33, 428,697.23 and 174,686.76 is: 241,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,656.33 : 428,697.23 = 174,686.76 : x
  2. Step 2: Convert to fraction form
    310,656.33/428,697.23 = 174,686.76/x
  3. Step 3: Cross multiply
    310,656.33x = 428,697.23 × 174,686.76
  4. Step 4: Simplify right side
    310,656.33x = 74,887,729,256.24
  5. Step 5: Solve for x
    x = 74,887,729,256.24/310,656.33
  6. Step 6: Final answer
    x = 241,062.94

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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.