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Finding the Fourth Proportional to 524,053.40, 786,080.10 and 239,743.40

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Solution

The fourth proportional to 524,053.40, 786,080.10 and 239,743.40 is: 359,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,053.40 : 786,080.10 = 239,743.40 : x
  2. Step 2: Convert to fraction form
    524,053.40/786,080.10 = 239,743.40/x
  3. Step 3: Cross multiply
    524,053.40x = 786,080.10 × 239,743.40
  4. Step 4: Simplify right side
    524,053.40x = 188,457,515,846.34
  5. Step 5: Solve for x
    x = 188,457,515,846.34/524,053.40
  6. Step 6: Final answer
    x = 359,615.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.