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Finding the Fourth Proportional to 608,063.64, 912,114 and 208,698.72

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Solution

The fourth proportional to 608,063.64, 912,114 and 208,698.72 is: 313,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,063.64 : 912,114 = 208,698.72 : x
  2. Step 2: Convert to fraction form
    608,063.64/912,114 = 208,698.72/x
  3. Step 3: Cross multiply
    608,063.64x = 912,114 × 208,698.72
  4. Step 4: Simplify right side
    608,063.64x = 190,357,024,294.08
  5. Step 5: Solve for x
    x = 190,357,024,294.08/608,063.64
  6. Step 6: Final answer
    x = 313,054.44

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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.