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Finding the Fourth Proportional to 474,677.10, 655,029.05 and 259,775.60

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Solution

The fourth proportional to 474,677.10, 655,029.05 and 259,775.60 is: 358,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,677.10 : 655,029.05 = 259,775.60 : x
  2. Step 2: Convert to fraction form
    474,677.10/655,029.05 = 259,775.60/x
  3. Step 3: Cross multiply
    474,677.10x = 655,029.05 × 259,775.60
  4. Step 4: Simplify right side
    474,677.10x = 170,160,559,907.16
  5. Step 5: Solve for x
    x = 170,160,559,907.16/474,677.10
  6. Step 6: Final answer
    x = 358,476.45

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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.