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Finding the Fourth Proportional to 245,331.40, 367,478.70 and 245,331.40

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Solution

The fourth proportional to 245,331.40, 367,478.70 and 245,331.40 is: 367,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,331.40 : 367,478.70 = 245,331.40 : x
  2. Step 2: Convert to fraction form
    245,331.40/367,478.70 = 245,331.40/x
  3. Step 3: Cross multiply
    245,331.40x = 367,478.70 × 245,331.40
  4. Step 4: Simplify right side
    245,331.40x = 90,154,063,941.18
  5. Step 5: Solve for x
    x = 90,154,063,941.18/245,331.40
  6. Step 6: Final answer
    x = 367,478.70

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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.