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Finding the Fourth Proportional to 641,219, 884,923.18 and 358,595

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Solution

The fourth proportional to 641,219, 884,923.18 and 358,595 is: 494,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,219 : 884,923.18 = 358,595 : x
  2. Step 2: Convert to fraction form
    641,219/884,923.18 = 358,595/x
  3. Step 3: Cross multiply
    641,219x = 884,923.18 × 358,595
  4. Step 4: Simplify right side
    641,219x = 317,329,027,732.10
  5. Step 5: Solve for x
    x = 317,329,027,732.10/641,219
  6. Step 6: Final answer
    x = 494,884.01

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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.