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Finding the Fourth Proportional to 621,907.67, 930,992.68 and 556,944.35

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Solution

The fourth proportional to 621,907.67, 930,992.68 and 556,944.35 is: 833,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,907.67 : 930,992.68 = 556,944.35 : x
  2. Step 2: Convert to fraction form
    621,907.67/930,992.68 = 556,944.35/x
  3. Step 3: Cross multiply
    621,907.67x = 930,992.68 × 556,944.35
  4. Step 4: Simplify right side
    621,907.67x = 518,511,110,232.64
  5. Step 5: Solve for x
    x = 518,511,110,232.64/621,907.67
  6. Step 6: Final answer
    x = 833,742.92

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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.