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Finding the Fourth Proportional to 566,196.63, 781,356.81 and 311,553.28

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Solution

The fourth proportional to 566,196.63, 781,356.81 and 311,553.28 is: 429,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,196.63 : 781,356.81 = 311,553.28 : x
  2. Step 2: Convert to fraction form
    566,196.63/781,356.81 = 311,553.28/x
  3. Step 3: Cross multiply
    566,196.63x = 781,356.81 × 311,553.28
  4. Step 4: Simplify right side
    566,196.63x = 243,434,277,005.84
  5. Step 5: Solve for x
    x = 243,434,277,005.84/566,196.63
  6. Step 6: Final answer
    x = 429,946.53

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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.