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Finding the Fourth Proportional to 716,622.41, 989,346.83 and 475,230.87

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Solution

The fourth proportional to 716,622.41, 989,346.83 and 475,230.87 is: 656,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,622.41 : 989,346.83 = 475,230.87 : x
  2. Step 2: Convert to fraction form
    716,622.41/989,346.83 = 475,230.87/x
  3. Step 3: Cross multiply
    716,622.41x = 989,346.83 × 475,230.87
  4. Step 4: Simplify right side
    716,622.41x = 470,168,152,376.49
  5. Step 5: Solve for x
    x = 470,168,152,376.49/716,622.41
  6. Step 6: Final answer
    x = 656,089.10

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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.