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Finding the Fourth Proportional to 885,777.10, 1,326,668.06 and 411,464.32

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Solution

The fourth proportional to 885,777.10, 1,326,668.06 and 411,464.32 is: 616,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,777.10 : 1,326,668.06 = 411,464.32 : x
  2. Step 2: Convert to fraction form
    885,777.10/1,326,668.06 = 411,464.32/x
  3. Step 3: Cross multiply
    885,777.10x = 1,326,668.06 × 411,464.32
  4. Step 4: Simplify right side
    885,777.10x = 545,876,571,173.62
  5. Step 5: Solve for x
    x = 545,876,571,173.62/885,777.10
  6. Step 6: Final answer
    x = 616,268.55

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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.