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Finding the Fourth Proportional to 628,393.67, 941,401.20 and 371,457.01

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Solution

The fourth proportional to 628,393.67, 941,401.20 and 371,457.01 is: 556,482.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,393.67 : 941,401.20 = 371,457.01 : x
  2. Step 2: Convert to fraction form
    628,393.67/941,401.20 = 371,457.01/x
  3. Step 3: Cross multiply
    628,393.67x = 941,401.20 × 371,457.01
  4. Step 4: Simplify right side
    628,393.67x = 349,690,070,751.62
  5. Step 5: Solve for x
    x = 349,690,070,751.62/628,393.67
  6. Step 6: Final answer
    x = 556,482.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.