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Finding the Fourth Proportional to 404,555.40, 605,666.70 and 404,555.40

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Solution

The fourth proportional to 404,555.40, 605,666.70 and 404,555.40 is: 605,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,555.40 : 605,666.70 = 404,555.40 : x
  2. Step 2: Convert to fraction form
    404,555.40/605,666.70 = 404,555.40/x
  3. Step 3: Cross multiply
    404,555.40x = 605,666.70 × 404,555.40
  4. Step 4: Simplify right side
    404,555.40x = 245,025,734,085.18
  5. Step 5: Solve for x
    x = 245,025,734,085.18/404,555.40
  6. Step 6: Final answer
    x = 605,666.70

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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.