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Finding the Fourth Proportional to 610,544.15, 842,602.70 and 338,699.65

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Solution

The fourth proportional to 610,544.15, 842,602.70 and 338,699.65 is: 467,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,544.15 : 842,602.70 = 338,699.65 : x
  2. Step 2: Convert to fraction form
    610,544.15/842,602.70 = 338,699.65/x
  3. Step 3: Cross multiply
    610,544.15x = 842,602.70 × 338,699.65
  4. Step 4: Simplify right side
    610,544.15x = 285,389,239,579.06
  5. Step 5: Solve for x
    x = 285,389,239,579.06/610,544.15
  6. Step 6: Final answer
    x = 467,434.24

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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.