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Finding the Fourth Proportional to 335,064.30, 502,596.45 and 85,746.30

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Solution

The fourth proportional to 335,064.30, 502,596.45 and 85,746.30 is: 128,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,064.30 : 502,596.45 = 85,746.30 : x
  2. Step 2: Convert to fraction form
    335,064.30/502,596.45 = 85,746.30/x
  3. Step 3: Cross multiply
    335,064.30x = 502,596.45 × 85,746.30
  4. Step 4: Simplify right side
    335,064.30x = 43,095,785,980.64
  5. Step 5: Solve for x
    x = 43,095,785,980.64/335,064.30
  6. Step 6: Final answer
    x = 128,619.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.