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Finding the Fourth Proportional to 538,565.70, 807,848.55 and 328,613.70

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Solution

The fourth proportional to 538,565.70, 807,848.55 and 328,613.70 is: 492,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,565.70 : 807,848.55 = 328,613.70 : x
  2. Step 2: Convert to fraction form
    538,565.70/807,848.55 = 328,613.70/x
  3. Step 3: Cross multiply
    538,565.70x = 807,848.55 × 328,613.70
  4. Step 4: Simplify right side
    538,565.70x = 265,470,101,055.14
  5. Step 5: Solve for x
    x = 265,470,101,055.14/538,565.70
  6. Step 6: Final answer
    x = 492,920.55

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Similar ratio
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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.