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Finding the Fourth Proportional to 950,443.76, 1,311,612.36 and 520,740.16

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Solution

The fourth proportional to 950,443.76, 1,311,612.36 and 520,740.16 is: 718,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,443.76 : 1,311,612.36 = 520,740.16 : x
  2. Step 2: Convert to fraction form
    950,443.76/1,311,612.36 = 520,740.16/x
  3. Step 3: Cross multiply
    950,443.76x = 1,311,612.36 × 520,740.16
  4. Step 4: Simplify right side
    950,443.76x = 683,009,230,204.38
  5. Step 5: Solve for x
    x = 683,009,230,204.38/950,443.76
  6. Step 6: Final answer
    x = 718,621.41

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Double scale
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1.5x scale

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.