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Finding the Fourth Proportional to 569,926.05, 786,495.08 and 311,798.32

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Solution

The fourth proportional to 569,926.05, 786,495.08 and 311,798.32 is: 430,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,926.05 : 786,495.08 = 311,798.32 : x
  2. Step 2: Convert to fraction form
    569,926.05/786,495.08 = 311,798.32/x
  3. Step 3: Cross multiply
    569,926.05x = 786,495.08 × 311,798.32
  4. Step 4: Simplify right side
    569,926.05x = 245,227,840,699.79
  5. Step 5: Solve for x
    x = 245,227,840,699.79/569,926.05
  6. Step 6: Final answer
    x = 430,280.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.