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Finding the Fourth Proportional to 618,962.88, 854,153.76 and 347,044.32

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Solution

The fourth proportional to 618,962.88, 854,153.76 and 347,044.32 is: 478,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,962.88 : 854,153.76 = 347,044.32 : x
  2. Step 2: Convert to fraction form
    618,962.88/854,153.76 = 347,044.32/x
  3. Step 3: Cross multiply
    618,962.88x = 854,153.76 × 347,044.32
  4. Step 4: Simplify right side
    618,962.88x = 296,429,210,814.64
  5. Step 5: Solve for x
    x = 296,429,210,814.64/618,962.88
  6. Step 6: Final answer
    x = 478,912.74

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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.