Home / 386,507.40-533,278.80-223,123.92

Finding the Fourth Proportional to 386,507.40, 533,278.80 and 223,123.92

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Solution

The fourth proportional to 386,507.40, 533,278.80 and 223,123.92 is: 307,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,507.40 : 533,278.80 = 223,123.92 : x
  2. Step 2: Convert to fraction form
    386,507.40/533,278.80 = 223,123.92/x
  3. Step 3: Cross multiply
    386,507.40x = 533,278.80 × 223,123.92
  4. Step 4: Simplify right side
    386,507.40x = 118,987,256,308.90
  5. Step 5: Solve for x
    x = 118,987,256,308.90/386,507.40
  6. Step 6: Final answer
    x = 307,852.47

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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.