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Finding the Fourth Proportional to 637,735.39, 880,041.62 and 396,012.77

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Solution

The fourth proportional to 637,735.39, 880,041.62 and 396,012.77 is: 546,477.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,735.39 : 880,041.62 = 396,012.77 : x
  2. Step 2: Convert to fraction form
    637,735.39/880,041.62 = 396,012.77/x
  3. Step 3: Cross multiply
    637,735.39x = 880,041.62 × 396,012.77
  4. Step 4: Simplify right side
    637,735.39x = 348,507,719,651.49
  5. Step 5: Solve for x
    x = 348,507,719,651.49/637,735.39
  6. Step 6: Final answer
    x = 546,477.00

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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.