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Finding the Fourth Proportional to 426,164.42, 588,328.01 and 311,314.12

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Solution

The fourth proportional to 426,164.42, 588,328.01 and 311,314.12 is: 429,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,164.42 : 588,328.01 = 311,314.12 : x
  2. Step 2: Convert to fraction form
    426,164.42/588,328.01 = 311,314.12/x
  3. Step 3: Cross multiply
    426,164.42x = 588,328.01 × 311,314.12
  4. Step 4: Simplify right side
    426,164.42x = 183,154,814,844.54
  5. Step 5: Solve for x
    x = 183,154,814,844.54/426,164.42
  6. Step 6: Final answer
    x = 429,775.00

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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.