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Finding the Fourth Proportional to 970,336.40, 1,452,005.40 and 655,408.40

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Solution

The fourth proportional to 970,336.40, 1,452,005.40 and 655,408.40 is: 980,749.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,336.40 : 1,452,005.40 = 655,408.40 : x
  2. Step 2: Convert to fraction form
    970,336.40/1,452,005.40 = 655,408.40/x
  3. Step 3: Cross multiply
    970,336.40x = 1,452,005.40 × 655,408.40
  4. Step 4: Simplify right side
    970,336.40x = 951,656,536,005.36
  5. Step 5: Solve for x
    x = 951,656,536,005.36/970,336.40
  6. Step 6: Final answer
    x = 980,749.08

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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.