Home / 856,323.04-1,279,276.28-554,343.52

Finding the Fourth Proportional to 856,323.04, 1,279,276.28 and 554,343.52

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Solution

The fourth proportional to 856,323.04, 1,279,276.28 and 554,343.52 is: 828,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,323.04 : 1,279,276.28 = 554,343.52 : x
  2. Step 2: Convert to fraction form
    856,323.04/1,279,276.28 = 554,343.52/x
  3. Step 3: Cross multiply
    856,323.04x = 1,279,276.28 × 554,343.52
  4. Step 4: Simplify right side
    856,323.04x = 709,158,516,107.71
  5. Step 5: Solve for x
    x = 709,158,516,107.71/856,323.04
  6. Step 6: Final answer
    x = 828,143.68

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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.