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Finding the Fourth Proportional to 622,641.10, 933,961.65 and 410,064.70

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Solution

The fourth proportional to 622,641.10, 933,961.65 and 410,064.70 is: 615,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,641.10 : 933,961.65 = 410,064.70 : x
  2. Step 2: Convert to fraction form
    622,641.10/933,961.65 = 410,064.70/x
  3. Step 3: Cross multiply
    622,641.10x = 933,961.65 × 410,064.70
  4. Step 4: Simplify right side
    622,641.10x = 382,984,703,818.76
  5. Step 5: Solve for x
    x = 382,984,703,818.76/622,641.10
  6. Step 6: Final answer
    x = 615,097.05

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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.