Home / 688,627.10-1,032,940.65-419,188.70

Finding the Fourth Proportional to 688,627.10, 1,032,940.65 and 419,188.70

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Solution

The fourth proportional to 688,627.10, 1,032,940.65 and 419,188.70 is: 628,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,627.10 : 1,032,940.65 = 419,188.70 : x
  2. Step 2: Convert to fraction form
    688,627.10/1,032,940.65 = 419,188.70/x
  3. Step 3: Cross multiply
    688,627.10x = 1,032,940.65 × 419,188.70
  4. Step 4: Simplify right side
    688,627.10x = 432,997,048,250.66
  5. Step 5: Solve for x
    x = 432,997,048,250.66/688,627.10
  6. Step 6: Final answer
    x = 628,783.05

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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.