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Finding the Fourth Proportional to 587,435.60, 879,403.80 and 350,656.40

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Solution

The fourth proportional to 587,435.60, 879,403.80 and 350,656.40 is: 524,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,435.60 : 879,403.80 = 350,656.40 : x
  2. Step 2: Convert to fraction form
    587,435.60/879,403.80 = 350,656.40/x
  3. Step 3: Cross multiply
    587,435.60x = 879,403.80 × 350,656.40
  4. Step 4: Simplify right side
    587,435.60x = 308,368,570,654.32
  5. Step 5: Solve for x
    x = 308,368,570,654.32/587,435.60
  6. Step 6: Final answer
    x = 524,940.22

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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.