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Finding the Fourth Proportional to 475,903.45, 712,452.66 and 416,854.45

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Solution

The fourth proportional to 475,903.45, 712,452.66 and 416,854.45 is: 624,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,903.45 : 712,452.66 = 416,854.45 : x
  2. Step 2: Convert to fraction form
    475,903.45/712,452.66 = 416,854.45/x
  3. Step 3: Cross multiply
    475,903.45x = 712,452.66 × 416,854.45
  4. Step 4: Simplify right side
    475,903.45x = 296,989,061,735.34
  5. Step 5: Solve for x
    x = 296,989,061,735.34/475,903.45
  6. Step 6: Final answer
    x = 624,053.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.