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Finding the Fourth Proportional to 610,541.65, 842,599.25 and 338,697.15

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Solution

The fourth proportional to 610,541.65, 842,599.25 and 338,697.15 is: 467,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,541.65 : 842,599.25 = 338,697.15 : x
  2. Step 2: Convert to fraction form
    610,541.65/842,599.25 = 338,697.15/x
  3. Step 3: Cross multiply
    610,541.65x = 842,599.25 × 338,697.15
  4. Step 4: Simplify right side
    610,541.65x = 285,385,964,567.14
  5. Step 5: Solve for x
    x = 285,385,964,567.14/610,541.65
  6. Step 6: Final answer
    x = 467,430.79

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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.