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Finding the Fourth Proportional to 475,506.51, 655,816.35 and 418,022.92

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Solution

The fourth proportional to 475,506.51, 655,816.35 and 418,022.92 is: 576,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,506.51 : 655,816.35 = 418,022.92 : x
  2. Step 2: Convert to fraction form
    475,506.51/655,816.35 = 418,022.92/x
  3. Step 3: Cross multiply
    475,506.51x = 655,816.35 × 418,022.92
  4. Step 4: Simplify right side
    475,506.51x = 274,146,265,610.74
  5. Step 5: Solve for x
    x = 274,146,265,610.74/475,506.51
  6. Step 6: Final answer
    x = 576,535.25

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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.