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Finding the Fourth Proportional to 570,667.22, 787,545.53 and 316,018.41

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Solution

The fourth proportional to 570,667.22, 787,545.53 and 316,018.41 is: 436,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,667.22 : 787,545.53 = 316,018.41 : x
  2. Step 2: Convert to fraction form
    570,667.22/787,545.53 = 316,018.41/x
  3. Step 3: Cross multiply
    570,667.22x = 787,545.53 × 316,018.41
  4. Step 4: Simplify right side
    570,667.22x = 248,878,884,613.12
  5. Step 5: Solve for x
    x = 248,878,884,613.12/570,667.22
  6. Step 6: Final answer
    x = 436,119.12

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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.