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Finding the Fourth Proportional to 612,410.10, 845,538.39 and 547,678.14

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Solution

The fourth proportional to 612,410.10, 845,538.39 and 547,678.14 is: 756,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,410.10 : 845,538.39 = 547,678.14 : x
  2. Step 2: Convert to fraction form
    612,410.10/845,538.39 = 547,678.14/x
  3. Step 3: Cross multiply
    612,410.10x = 845,538.39 × 547,678.14
  4. Step 4: Simplify right side
    612,410.10x = 463,082,892,733.80
  5. Step 5: Solve for x
    x = 463,082,892,733.80/612,410.10
  6. Step 6: Final answer
    x = 756,164.69

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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.