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Finding the Fourth Proportional to 570,595.38, 787,412.00 and 315,941.10

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Solution

The fourth proportional to 570,595.38, 787,412.00 and 315,941.10 is: 435,993.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,595.38 : 787,412.00 = 315,941.10 : x
  2. Step 2: Convert to fraction form
    570,595.38/787,412.00 = 315,941.10/x
  3. Step 3: Cross multiply
    570,595.38x = 787,412.00 × 315,941.10
  4. Step 4: Simplify right side
    570,595.38x = 248,775,811,853.49
  5. Step 5: Solve for x
    x = 248,775,811,853.49/570,595.38
  6. Step 6: Final answer
    x = 435,993.39

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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.