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Finding the Fourth Proportional to 655,848.32, 905,488.56 and 535,277.21

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Solution

The fourth proportional to 655,848.32, 905,488.56 and 535,277.21 is: 739,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,848.32 : 905,488.56 = 535,277.21 : x
  2. Step 2: Convert to fraction form
    655,848.32/905,488.56 = 535,277.21/x
  3. Step 3: Cross multiply
    655,848.32x = 905,488.56 × 535,277.21
  4. Step 4: Simplify right side
    655,848.32x = 484,687,385,556.28
  5. Step 5: Solve for x
    x = 484,687,385,556.28/655,848.32
  6. Step 6: Final answer
    x = 739,023.60

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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.