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Finding the Fourth Proportional to 672,068.60, 1,008,102.90 and 605,713.40

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Solution

The fourth proportional to 672,068.60, 1,008,102.90 and 605,713.40 is: 908,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,068.60 : 1,008,102.90 = 605,713.40 : x
  2. Step 2: Convert to fraction form
    672,068.60/1,008,102.90 = 605,713.40/x
  3. Step 3: Cross multiply
    672,068.60x = 1,008,102.90 × 605,713.40
  4. Step 4: Simplify right side
    672,068.60x = 610,621,435,108.86
  5. Step 5: Solve for x
    x = 610,621,435,108.86/672,068.60
  6. Step 6: Final answer
    x = 908,570.10

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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.