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Finding the Fourth Proportional to 502,056.76, 692,252.98 and 374,510.92

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Solution

The fourth proportional to 502,056.76, 692,252.98 and 374,510.92 is: 516,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,056.76 : 692,252.98 = 374,510.92 : x
  2. Step 2: Convert to fraction form
    502,056.76/692,252.98 = 374,510.92/x
  3. Step 3: Cross multiply
    502,056.76x = 692,252.98 × 374,510.92
  4. Step 4: Simplify right side
    502,056.76x = 259,256,300,412.54
  5. Step 5: Solve for x
    x = 259,256,300,412.54/502,056.76
  6. Step 6: Final answer
    x = 516,388.43

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Half scale
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Double scale
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Similar ratio
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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.