Home / 830,850.78-1,146,579.10-463,351.15

Finding the Fourth Proportional to 830,850.78, 1,146,579.10 and 463,351.15

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Solution

The fourth proportional to 830,850.78, 1,146,579.10 and 463,351.15 is: 639,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,850.78 : 1,146,579.10 = 463,351.15 : x
  2. Step 2: Convert to fraction form
    830,850.78/1,146,579.10 = 463,351.15/x
  3. Step 3: Cross multiply
    830,850.78x = 1,146,579.10 × 463,351.15
  4. Step 4: Simplify right side
    830,850.78x = 531,268,744,825.81
  5. Step 5: Solve for x
    x = 531,268,744,825.81/830,850.78
  6. Step 6: Final answer
    x = 639,427.39

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Half scale
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Double scale
Find fourth proportional to 830,851.78, 1,146,580.48 and 463,352.15
Similar ratio
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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.