Home / 830,623.68-1,146,261.38-448,650.77

Finding the Fourth Proportional to 830,623.68, 1,146,261.38 and 448,650.77

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Solution

The fourth proportional to 830,623.68, 1,146,261.38 and 448,650.77 is: 619,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,623.68 : 1,146,261.38 = 448,650.77 : x
  2. Step 2: Convert to fraction form
    830,623.68/1,146,261.38 = 448,650.77/x
  3. Step 3: Cross multiply
    830,623.68x = 1,146,261.38 × 448,650.77
  4. Step 4: Simplify right side
    830,623.68x = 514,271,042,783.70
  5. Step 5: Solve for x
    x = 514,271,042,783.70/830,623.68
  6. Step 6: Final answer
    x = 619,138.43

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Double scale
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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.