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Finding the Fourth Proportional to 573,089.70, 859,634.55 and 307,369.20

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Solution

The fourth proportional to 573,089.70, 859,634.55 and 307,369.20 is: 461,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,089.70 : 859,634.55 = 307,369.20 : x
  2. Step 2: Convert to fraction form
    573,089.70/859,634.55 = 307,369.20/x
  3. Step 3: Cross multiply
    573,089.70x = 859,634.55 × 307,369.20
  4. Step 4: Simplify right side
    573,089.70x = 264,225,183,925.86
  5. Step 5: Solve for x
    x = 264,225,183,925.86/573,089.70
  6. Step 6: Final answer
    x = 461,053.80

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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.