Home / 811,235.50-1,216,498.23-384,892.87

Finding the Fourth Proportional to 811,235.50, 1,216,498.23 and 384,892.87

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Solution

The fourth proportional to 811,235.50, 1,216,498.23 and 384,892.87 is: 577,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,235.50 : 1,216,498.23 = 384,892.87 : x
  2. Step 2: Convert to fraction form
    811,235.50/1,216,498.23 = 384,892.87/x
  3. Step 3: Cross multiply
    811,235.50x = 1,216,498.23 × 384,892.87
  4. Step 4: Simplify right side
    811,235.50x = 468,221,495,094.62
  5. Step 5: Solve for x
    x = 468,221,495,094.62/811,235.50
  6. Step 6: Final answer
    x = 577,170.86

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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.