Home / 663,935.53-916,291.39-377,454.93

Finding the Fourth Proportional to 663,935.53, 916,291.39 and 377,454.93

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Solution

The fourth proportional to 663,935.53, 916,291.39 and 377,454.93 is: 520,922.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,935.53 : 916,291.39 = 377,454.93 : x
  2. Step 2: Convert to fraction form
    663,935.53/916,291.39 = 377,454.93/x
  3. Step 3: Cross multiply
    663,935.53x = 916,291.39 × 377,454.93
  4. Step 4: Simplify right side
    663,935.53x = 345,858,701,528.42
  5. Step 5: Solve for x
    x = 345,858,701,528.42/663,935.53
  6. Step 6: Final answer
    x = 520,922.12

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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.