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Finding the Fourth Proportional to 974,189.12, 1,461,421.12 and 300,325.12

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Solution

The fourth proportional to 974,189.12, 1,461,421.12 and 300,325.12 is: 450,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,189.12 : 1,461,421.12 = 300,325.12 : x
  2. Step 2: Convert to fraction form
    974,189.12/1,461,421.12 = 300,325.12/x
  3. Step 3: Cross multiply
    974,189.12x = 1,461,421.12 × 300,325.12
  4. Step 4: Simplify right side
    974,189.12x = 438,901,473,234.53
  5. Step 5: Solve for x
    x = 438,901,473,234.53/974,189.12
  6. Step 6: Final answer
    x = 450,530.05

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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.