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Finding the Fourth Proportional to 404,661.40, 565,476.20 and 404,661.40

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Solution

The fourth proportional to 404,661.40, 565,476.20 and 404,661.40 is: 565,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,661.40 : 565,476.20 = 404,661.40 : x
  2. Step 2: Convert to fraction form
    404,661.40/565,476.20 = 404,661.40/x
  3. Step 3: Cross multiply
    404,661.40x = 565,476.20 × 404,661.40
  4. Step 4: Simplify right side
    404,661.40x = 228,826,390,758.68
  5. Step 5: Solve for x
    x = 228,826,390,758.68/404,661.40
  6. Step 6: Final answer
    x = 565,476.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.