Home / 349,918.40-524,877.60-279,934.40

Finding the Fourth Proportional to 349,918.40, 524,877.60 and 279,934.40

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Solution

The fourth proportional to 349,918.40, 524,877.60 and 279,934.40 is: 419,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,918.40 : 524,877.60 = 279,934.40 : x
  2. Step 2: Convert to fraction form
    349,918.40/524,877.60 = 279,934.40/x
  3. Step 3: Cross multiply
    349,918.40x = 524,877.60 × 279,934.40
  4. Step 4: Simplify right side
    349,918.40x = 146,931,296,029.44
  5. Step 5: Solve for x
    x = 146,931,296,029.44/349,918.40
  6. Step 6: Final answer
    x = 419,901.60

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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.