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Finding the Fourth Proportional to 557,136.83, 767,127.31 and 435,122.07

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Solution

The fourth proportional to 557,136.83, 767,127.31 and 435,122.07 is: 599,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,136.83 : 767,127.31 = 435,122.07 : x
  2. Step 2: Convert to fraction form
    557,136.83/767,127.31 = 435,122.07/x
  3. Step 3: Cross multiply
    557,136.83x = 767,127.31 × 435,122.07
  4. Step 4: Simplify right side
    557,136.83x = 333,794,023,080.73
  5. Step 5: Solve for x
    x = 333,794,023,080.73/557,136.83
  6. Step 6: Final answer
    x = 599,123.96

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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.