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Finding the Fourth Proportional to 403,580.99, 556,981.07 and 301,429.13

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Solution

The fourth proportional to 403,580.99, 556,981.07 and 301,429.13 is: 416,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,580.99 : 556,981.07 = 301,429.13 : x
  2. Step 2: Convert to fraction form
    403,580.99/556,981.07 = 301,429.13/x
  3. Step 3: Cross multiply
    403,580.99x = 556,981.07 × 301,429.13
  4. Step 4: Simplify right side
    403,580.99x = 167,890,315,064.52
  5. Step 5: Solve for x
    x = 167,890,315,064.52/403,580.99
  6. Step 6: Final answer
    x = 416,001.54

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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.