Home / 627,013.86-865,280.66-340,527.80

Finding the Fourth Proportional to 627,013.86, 865,280.66 and 340,527.80

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Solution

The fourth proportional to 627,013.86, 865,280.66 and 340,527.80 is: 469,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,013.86 : 865,280.66 = 340,527.80 : x
  2. Step 2: Convert to fraction form
    627,013.86/865,280.66 = 340,527.80/x
  3. Step 3: Cross multiply
    627,013.86x = 865,280.66 × 340,527.80
  4. Step 4: Simplify right side
    627,013.86x = 294,652,113,503.31
  5. Step 5: Solve for x
    x = 294,652,113,503.31/627,013.86
  6. Step 6: Final answer
    x = 469,929.19

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1.5x scale

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.