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Finding the Fourth Proportional to 620,482.91, 931,511.88 and 527,579.15

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Solution

The fourth proportional to 620,482.91, 931,511.88 and 527,579.15 is: 792,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,482.91 : 931,511.88 = 527,579.15 : x
  2. Step 2: Convert to fraction form
    620,482.91/931,511.88 = 527,579.15/x
  3. Step 3: Cross multiply
    620,482.91x = 931,511.88 × 527,579.15
  4. Step 4: Simplify right side
    620,482.91x = 491,446,241,207.74
  5. Step 5: Solve for x
    x = 491,446,241,207.74/620,482.91
  6. Step 6: Final answer
    x = 792,038.33

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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.