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Finding the Fourth Proportional to 554,665.80, 830,832.30 and 461,353.80

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Solution

The fourth proportional to 554,665.80, 830,832.30 and 461,353.80 is: 691,060.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,665.80 : 830,832.30 = 461,353.80 : x
  2. Step 2: Convert to fraction form
    554,665.80/830,832.30 = 461,353.80/x
  3. Step 3: Cross multiply
    554,665.80x = 830,832.30 × 461,353.80
  4. Step 4: Simplify right side
    554,665.80x = 383,307,638,767.74
  5. Step 5: Solve for x
    x = 383,307,638,767.74/554,665.80
  6. Step 6: Final answer
    x = 691,060.52

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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.