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Finding the Fourth Proportional to 584,913.20, 877,369.80 and 210,936.20

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Solution

The fourth proportional to 584,913.20, 877,369.80 and 210,936.20 is: 316,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,913.20 : 877,369.80 = 210,936.20 : x
  2. Step 2: Convert to fraction form
    584,913.20/877,369.80 = 210,936.20/x
  3. Step 3: Cross multiply
    584,913.20x = 877,369.80 × 210,936.20
  4. Step 4: Simplify right side
    584,913.20x = 185,069,047,219.91
  5. Step 5: Solve for x
    x = 185,069,047,219.91/584,913.20
  6. Step 6: Final answer
    x = 316,404.30

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Double scale
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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.