Home / 938,513.20-1,408,061.40-369,966.10

Finding the Fourth Proportional to 938,513.20, 1,408,061.40 and 369,966.10

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Solution

The fourth proportional to 938,513.20, 1,408,061.40 and 369,966.10 is: 555,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,513.20 : 1,408,061.40 = 369,966.10 : x
  2. Step 2: Convert to fraction form
    938,513.20/1,408,061.40 = 369,966.10/x
  3. Step 3: Cross multiply
    938,513.20x = 1,408,061.40 × 369,966.10
  4. Step 4: Simplify right side
    938,513.20x = 520,934,984,718.54
  5. Step 5: Solve for x
    x = 520,934,984,718.54/938,513.20
  6. Step 6: Final answer
    x = 555,064.10

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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.