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Finding the Fourth Proportional to 450,360.63, 620,783.06 and 354,715.83

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Solution

The fourth proportional to 450,360.63, 620,783.06 and 354,715.83 is: 488,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,360.63 : 620,783.06 = 354,715.83 : x
  2. Step 2: Convert to fraction form
    450,360.63/620,783.06 = 354,715.83/x
  3. Step 3: Cross multiply
    450,360.63x = 620,783.06 × 354,715.83
  4. Step 4: Simplify right side
    450,360.63x = 220,201,576,604.26
  5. Step 5: Solve for x
    x = 220,201,576,604.26/450,360.63
  6. Step 6: Final answer
    x = 488,945.00

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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.