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Finding the Fourth Proportional to 626,024, 863,913.12 and 357,752

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Solution

The fourth proportional to 626,024, 863,913.12 and 357,752 is: 493,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,024 : 863,913.12 = 357,752 : x
  2. Step 2: Convert to fraction form
    626,024/863,913.12 = 357,752/x
  3. Step 3: Cross multiply
    626,024x = 863,913.12 × 357,752
  4. Step 4: Simplify right side
    626,024x = 309,066,646,506.24
  5. Step 5: Solve for x
    x = 309,066,646,506.24/626,024
  6. Step 6: Final answer
    x = 493,697.76

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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.