Home / 648,874.80-895,386.96-419,437.44

Finding the Fourth Proportional to 648,874.80, 895,386.96 and 419,437.44

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Solution

The fourth proportional to 648,874.80, 895,386.96 and 419,437.44 is: 578,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,874.80 : 895,386.96 = 419,437.44 : x
  2. Step 2: Convert to fraction form
    648,874.80/895,386.96 = 419,437.44/x
  3. Step 3: Cross multiply
    648,874.80x = 895,386.96 × 419,437.44
  4. Step 4: Simplify right side
    648,874.80x = 375,558,814,311.78
  5. Step 5: Solve for x
    x = 375,558,814,311.78/648,874.80
  6. Step 6: Final answer
    x = 578,784.71

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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.