Home / 819,176.15-1,227,798.88-369,370.40

Finding the Fourth Proportional to 819,176.15, 1,227,798.88 and 369,370.40

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Solution

The fourth proportional to 819,176.15, 1,227,798.88 and 369,370.40 is: 553,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,176.15 : 1,227,798.88 = 369,370.40 : x
  2. Step 2: Convert to fraction form
    819,176.15/1,227,798.88 = 369,370.40/x
  3. Step 3: Cross multiply
    819,176.15x = 1,227,798.88 × 369,370.40
  4. Step 4: Simplify right side
    819,176.15x = 453,512,556,362.73
  5. Step 5: Solve for x
    x = 453,512,556,362.73/819,176.15
  6. Step 6: Final answer
    x = 553,620.31

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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.