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Finding the Fourth Proportional to 475,133.05, 655,683.74 and 260,280.82

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Solution

The fourth proportional to 475,133.05, 655,683.74 and 260,280.82 is: 359,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,133.05 : 655,683.74 = 260,280.82 : x
  2. Step 2: Convert to fraction form
    475,133.05/655,683.74 = 260,280.82/x
  3. Step 3: Cross multiply
    475,133.05x = 655,683.74 × 260,280.82
  4. Step 4: Simplify right side
    475,133.05x = 170,661,901,507.87
  5. Step 5: Solve for x
    x = 170,661,901,507.87/475,133.05
  6. Step 6: Final answer
    x = 359,187.60

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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.