Home / 612,666.29-919,043.37-163,384.80

Finding the Fourth Proportional to 612,666.29, 919,043.37 and 163,384.80

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Solution

The fourth proportional to 612,666.29, 919,043.37 and 163,384.80 is: 245,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,666.29 : 919,043.37 = 163,384.80 : x
  2. Step 2: Convert to fraction form
    612,666.29/919,043.37 = 163,384.80/x
  3. Step 3: Cross multiply
    612,666.29x = 919,043.37 × 163,384.80
  4. Step 4: Simplify right side
    612,666.29x = 150,157,717,198.78
  5. Step 5: Solve for x
    x = 150,157,717,198.78/612,666.29
  6. Step 6: Final answer
    x = 245,088.92

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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.