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Finding the Fourth Proportional to 836,775.76, 1,154,750.72 and 454,802.60

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Solution

The fourth proportional to 836,775.76, 1,154,750.72 and 454,802.60 is: 627,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,775.76 : 1,154,750.72 = 454,802.60 : x
  2. Step 2: Convert to fraction form
    836,775.76/1,154,750.72 = 454,802.60/x
  3. Step 3: Cross multiply
    836,775.76x = 1,154,750.72 × 454,802.60
  4. Step 4: Simplify right side
    836,775.76x = 525,183,629,807.87
  5. Step 5: Solve for x
    x = 525,183,629,807.87/836,775.76
  6. Step 6: Final answer
    x = 627,627.68

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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.