Home / 641,140.90-884,697.34-369,297.21

Finding the Fourth Proportional to 641,140.90, 884,697.34 and 369,297.21

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Solution

The fourth proportional to 641,140.90, 884,697.34 and 369,297.21 is: 509,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,140.90 : 884,697.34 = 369,297.21 : x
  2. Step 2: Convert to fraction form
    641,140.90/884,697.34 = 369,297.21/x
  3. Step 3: Cross multiply
    641,140.90x = 884,697.34 × 369,297.21
  4. Step 4: Simplify right side
    641,140.90x = 326,716,259,356.42
  5. Step 5: Solve for x
    x = 326,716,259,356.42/641,140.90
  6. Step 6: Final answer
    x = 509,585.74

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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.