Home / 723,419.21-998,269.85-401,117.38

Finding the Fourth Proportional to 723,419.21, 998,269.85 and 401,117.38

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Solution

The fourth proportional to 723,419.21, 998,269.85 and 401,117.38 is: 553,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,419.21 : 998,269.85 = 401,117.38 : x
  2. Step 2: Convert to fraction form
    723,419.21/998,269.85 = 401,117.38/x
  3. Step 3: Cross multiply
    723,419.21x = 998,269.85 × 401,117.38
  4. Step 4: Simplify right side
    723,419.21x = 400,423,385,272.11
  5. Step 5: Solve for x
    x = 400,423,385,272.11/723,419.21
  6. Step 6: Final answer
    x = 553,515.00

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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.