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Finding the Fourth Proportional to 569,088.40, 853,632.60 and 285,653.20

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Solution

The fourth proportional to 569,088.40, 853,632.60 and 285,653.20 is: 428,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,088.40 : 853,632.60 = 285,653.20 : x
  2. Step 2: Convert to fraction form
    569,088.40/853,632.60 = 285,653.20/x
  3. Step 3: Cross multiply
    569,088.40x = 853,632.60 × 285,653.20
  4. Step 4: Simplify right side
    569,088.40x = 243,842,883,814.32
  5. Step 5: Solve for x
    x = 243,842,883,814.32/569,088.40
  6. Step 6: Final answer
    x = 428,479.80

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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.