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Finding the Fourth Proportional to 543,417.59, 749,878.83 and 301,681.40

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Solution

The fourth proportional to 543,417.59, 749,878.83 and 301,681.40 is: 416,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,417.59 : 749,878.83 = 301,681.40 : x
  2. Step 2: Convert to fraction form
    543,417.59/749,878.83 = 301,681.40/x
  3. Step 3: Cross multiply
    543,417.59x = 749,878.83 × 301,681.40
  4. Step 4: Simplify right side
    543,417.59x = 226,224,491,515.37
  5. Step 5: Solve for x
    x = 226,224,491,515.37/543,417.59
  6. Step 6: Final answer
    x = 416,299.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.