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Finding the Fourth Proportional to 608,212.04, 913,145.43 and 342,159.80

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Solution

The fourth proportional to 608,212.04, 913,145.43 and 342,159.80 is: 513,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,212.04 : 913,145.43 = 342,159.80 : x
  2. Step 2: Convert to fraction form
    608,212.04/913,145.43 = 342,159.80/x
  3. Step 3: Cross multiply
    608,212.04x = 913,145.43 × 342,159.80
  4. Step 4: Simplify right side
    608,212.04x = 312,441,657,699.71
  5. Step 5: Solve for x
    x = 312,441,657,699.71/608,212.04
  6. Step 6: Final answer
    x = 513,705.15

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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.