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Finding the Fourth Proportional to 698,253.12, 963,590.45 and 396,447.12

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Solution

The fourth proportional to 698,253.12, 963,590.45 and 396,447.12 is: 547,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,253.12 : 963,590.45 = 396,447.12 : x
  2. Step 2: Convert to fraction form
    698,253.12/963,590.45 = 396,447.12/x
  3. Step 3: Cross multiply
    698,253.12x = 963,590.45 × 396,447.12
  4. Step 4: Simplify right side
    698,253.12x = 382,012,656,779.77
  5. Step 5: Solve for x
    x = 382,012,656,779.77/698,253.12
  6. Step 6: Final answer
    x = 547,097.67

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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.