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Finding the Fourth Proportional to 530,948.40, 796,422.60 and 156,971.40

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Solution

The fourth proportional to 530,948.40, 796,422.60 and 156,971.40 is: 235,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,948.40 : 796,422.60 = 156,971.40 : x
  2. Step 2: Convert to fraction form
    530,948.40/796,422.60 = 156,971.40/x
  3. Step 3: Cross multiply
    530,948.40x = 796,422.60 × 156,971.40
  4. Step 4: Simplify right side
    530,948.40x = 125,015,570,513.64
  5. Step 5: Solve for x
    x = 125,015,570,513.64/530,948.40
  6. Step 6: Final answer
    x = 235,457.10

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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.