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Finding the Fourth Proportional to 291,920.10, 437,880.15 and 291,920.10

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Solution

The fourth proportional to 291,920.10, 437,880.15 and 291,920.10 is: 437,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,920.10 : 437,880.15 = 291,920.10 : x
  2. Step 2: Convert to fraction form
    291,920.10/437,880.15 = 291,920.10/x
  3. Step 3: Cross multiply
    291,920.10x = 437,880.15 × 291,920.10
  4. Step 4: Simplify right side
    291,920.10x = 127,826,017,176.02
  5. Step 5: Solve for x
    x = 127,826,017,176.02/291,920.10
  6. Step 6: Final answer
    x = 437,880.15

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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.