Home / 927,784.80-1,390,640.40-528,616.80

Finding the Fourth Proportional to 927,784.80, 1,390,640.40 and 528,616.80

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Solution

The fourth proportional to 927,784.80, 1,390,640.40 and 528,616.80 is: 792,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,784.80 : 1,390,640.40 = 528,616.80 : x
  2. Step 2: Convert to fraction form
    927,784.80/1,390,640.40 = 528,616.80/x
  3. Step 3: Cross multiply
    927,784.80x = 1,390,640.40 × 528,616.80
  4. Step 4: Simplify right side
    927,784.80x = 735,115,878,198.72
  5. Step 5: Solve for x
    x = 735,115,878,198.72/927,784.80
  6. Step 6: Final answer
    x = 792,334.47

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1.5x scale

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.