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Finding the Fourth Proportional to 552,176.84, 761,993.91 and 307,160.39

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Solution

The fourth proportional to 552,176.84, 761,993.91 and 307,160.39 is: 423,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,176.84 : 761,993.91 = 307,160.39 : x
  2. Step 2: Convert to fraction form
    552,176.84/761,993.91 = 307,160.39/x
  3. Step 3: Cross multiply
    552,176.84x = 761,993.91 × 307,160.39
  4. Step 4: Simplify right side
    552,176.84x = 234,054,348,478.21
  5. Step 5: Solve for x
    x = 234,054,348,478.21/552,176.84
  6. Step 6: Final answer
    x = 423,875.71

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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.