Home / 828,384.59-1,143,148.05-465,799.16

Finding the Fourth Proportional to 828,384.59, 1,143,148.05 and 465,799.16

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Solution

The fourth proportional to 828,384.59, 1,143,148.05 and 465,799.16 is: 642,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,384.59 : 1,143,148.05 = 465,799.16 : x
  2. Step 2: Convert to fraction form
    828,384.59/1,143,148.05 = 465,799.16/x
  3. Step 3: Cross multiply
    828,384.59x = 1,143,148.05 × 465,799.16
  4. Step 4: Simplify right side
    828,384.59x = 532,477,395,729.90
  5. Step 5: Solve for x
    x = 532,477,395,729.90/828,384.59
  6. Step 6: Final answer
    x = 642,790.08

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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.