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Finding the Fourth Proportional to 691,253, 953,929.14 and 373,301

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Solution

The fourth proportional to 691,253, 953,929.14 and 373,301 is: 515,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,253 : 953,929.14 = 373,301 : x
  2. Step 2: Convert to fraction form
    691,253/953,929.14 = 373,301/x
  3. Step 3: Cross multiply
    691,253x = 953,929.14 × 373,301
  4. Step 4: Simplify right side
    691,253x = 356,102,701,891.14
  5. Step 5: Solve for x
    x = 356,102,701,891.14/691,253
  6. Step 6: Final answer
    x = 515,155.38

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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.