Home / 911,007.60-1,366,511.40-405,567.60

Finding the Fourth Proportional to 911,007.60, 1,366,511.40 and 405,567.60

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Solution

The fourth proportional to 911,007.60, 1,366,511.40 and 405,567.60 is: 608,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,007.60 : 1,366,511.40 = 405,567.60 : x
  2. Step 2: Convert to fraction form
    911,007.60/1,366,511.40 = 405,567.60/x
  3. Step 3: Cross multiply
    911,007.60x = 1,366,511.40 × 405,567.60
  4. Step 4: Simplify right side
    911,007.60x = 554,212,748,870.64
  5. Step 5: Solve for x
    x = 554,212,748,870.64/911,007.60
  6. Step 6: Final answer
    x = 608,351.40

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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.