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Finding the Fourth Proportional to 570,653.78, 787,559.58 and 316,004.94

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Solution

The fourth proportional to 570,653.78, 787,559.58 and 316,004.94 is: 436,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,653.78 : 787,559.58 = 316,004.94 : x
  2. Step 2: Convert to fraction form
    570,653.78/787,559.58 = 316,004.94/x
  3. Step 3: Cross multiply
    570,653.78x = 787,559.58 × 316,004.94
  4. Step 4: Simplify right side
    570,653.78x = 248,872,717,824.33
  5. Step 5: Solve for x
    x = 248,872,717,824.33/570,653.78
  6. Step 6: Final answer
    x = 436,118.59

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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.