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Finding the Fourth Proportional to 622,647.60, 933,971.40 and 410,071.20

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Solution

The fourth proportional to 622,647.60, 933,971.40 and 410,071.20 is: 615,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,647.60 : 933,971.40 = 410,071.20 : x
  2. Step 2: Convert to fraction form
    622,647.60/933,971.40 = 410,071.20/x
  3. Step 3: Cross multiply
    622,647.60x = 933,971.40 × 410,071.20
  4. Step 4: Simplify right side
    622,647.60x = 382,994,772,763.68
  5. Step 5: Solve for x
    x = 382,994,772,763.68/622,647.60
  6. Step 6: Final answer
    x = 615,106.80

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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.