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Finding the Fourth Proportional to 675,173.46, 931,701.69 and 369,189.12

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Solution

The fourth proportional to 675,173.46, 931,701.69 and 369,189.12 is: 509,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,173.46 : 931,701.69 = 369,189.12 : x
  2. Step 2: Convert to fraction form
    675,173.46/931,701.69 = 369,189.12/x
  3. Step 3: Cross multiply
    675,173.46x = 931,701.69 × 369,189.12
  4. Step 4: Simplify right side
    675,173.46x = 343,974,127,033.61
  5. Step 5: Solve for x
    x = 343,974,127,033.61/675,173.46
  6. Step 6: Final answer
    x = 509,460.38

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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.