Home / 856,319.04-1,279,270.32-554,339.52

Finding the Fourth Proportional to 856,319.04, 1,279,270.32 and 554,339.52

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Solution

The fourth proportional to 856,319.04, 1,279,270.32 and 554,339.52 is: 828,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,319.04 : 1,279,270.32 = 554,339.52 : x
  2. Step 2: Convert to fraction form
    856,319.04/1,279,270.32 = 554,339.52/x
  3. Step 3: Cross multiply
    856,319.04x = 1,279,270.32 × 554,339.52
  4. Step 4: Simplify right side
    856,319.04x = 709,150,095,139.05
  5. Step 5: Solve for x
    x = 709,150,095,139.05/856,319.04
  6. Step 6: Final answer
    x = 828,137.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.