Home / 651,435.60-977,383.80-628,395.60

Finding the Fourth Proportional to 651,435.60, 977,383.80 and 628,395.60

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Solution

The fourth proportional to 651,435.60, 977,383.80 and 628,395.60 is: 942,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,435.60 : 977,383.80 = 628,395.60 : x
  2. Step 2: Convert to fraction form
    651,435.60/977,383.80 = 628,395.60/x
  3. Step 3: Cross multiply
    651,435.60x = 977,383.80 × 628,395.60
  4. Step 4: Simplify right side
    651,435.60x = 614,183,679,431.28
  5. Step 5: Solve for x
    x = 614,183,679,431.28/651,435.60
  6. Step 6: Final answer
    x = 942,815.65

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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.