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Finding the Fourth Proportional to 501,535.76, 692,119.28 and 286,680.44

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Solution

The fourth proportional to 501,535.76, 692,119.28 and 286,680.44 is: 395,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,535.76 : 692,119.28 = 286,680.44 : x
  2. Step 2: Convert to fraction form
    501,535.76/692,119.28 = 286,680.44/x
  3. Step 3: Cross multiply
    501,535.76x = 692,119.28 × 286,680.44
  4. Step 4: Simplify right side
    501,535.76x = 198,417,059,722.88
  5. Step 5: Solve for x
    x = 198,417,059,722.88/501,535.76
  6. Step 6: Final answer
    x = 395,618.97

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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.