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Finding the Fourth Proportional to 608,970.60, 913,455.90 and 576,311.40

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Solution

The fourth proportional to 608,970.60, 913,455.90 and 576,311.40 is: 864,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,970.60 : 913,455.90 = 576,311.40 : x
  2. Step 2: Convert to fraction form
    608,970.60/913,455.90 = 576,311.40/x
  3. Step 3: Cross multiply
    608,970.60x = 913,455.90 × 576,311.40
  4. Step 4: Simplify right side
    608,970.60x = 526,435,048,567.26
  5. Step 5: Solve for x
    x = 526,435,048,567.26/608,970.60
  6. Step 6: Final answer
    x = 864,467.10

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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.