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Finding the Fourth Proportional to 376,681.80, 565,022.70 and 127,363.80

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Solution

The fourth proportional to 376,681.80, 565,022.70 and 127,363.80 is: 191,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,681.80 : 565,022.70 = 127,363.80 : x
  2. Step 2: Convert to fraction form
    376,681.80/565,022.70 = 127,363.80/x
  3. Step 3: Cross multiply
    376,681.80x = 565,022.70 × 127,363.80
  4. Step 4: Simplify right side
    376,681.80x = 71,963,438,158.26
  5. Step 5: Solve for x
    x = 71,963,438,158.26/376,681.80
  6. Step 6: Final answer
    x = 191,045.70

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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.