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Finding the Fourth Proportional to 319,358.95, 479,115.37 and 119,681.10

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Solution

The fourth proportional to 319,358.95, 479,115.37 and 119,681.10 is: 179,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,358.95 : 479,115.37 = 119,681.10 : x
  2. Step 2: Convert to fraction form
    319,358.95/479,115.37 = 119,681.10/x
  3. Step 3: Cross multiply
    319,358.95x = 479,115.37 × 119,681.10
  4. Step 4: Simplify right side
    319,358.95x = 57,341,054,508.51
  5. Step 5: Solve for x
    x = 57,341,054,508.51/319,358.95
  6. Step 6: Final answer
    x = 179,550.49

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1.5x scale

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.