Home / 659,123.56-909,637.14-372,646.36

Finding the Fourth Proportional to 659,123.56, 909,637.14 and 372,646.36

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Solution

The fourth proportional to 659,123.56, 909,637.14 and 372,646.36 is: 514,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,123.56 : 909,637.14 = 372,646.36 : x
  2. Step 2: Convert to fraction form
    659,123.56/909,637.14 = 372,646.36/x
  3. Step 3: Cross multiply
    659,123.56x = 909,637.14 × 372,646.36
  4. Step 4: Simplify right side
    659,123.56x = 338,972,969,141.81
  5. Step 5: Solve for x
    x = 338,972,969,141.81/659,123.56
  6. Step 6: Final answer
    x = 514,278.34

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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.