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Finding the Fourth Proportional to 657,946.80, 986,952.60 and 343,018.80

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Solution

The fourth proportional to 657,946.80, 986,952.60 and 343,018.80 is: 514,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,946.80 : 986,952.60 = 343,018.80 : x
  2. Step 2: Convert to fraction form
    657,946.80/986,952.60 = 343,018.80/x
  3. Step 3: Cross multiply
    657,946.80x = 986,952.60 × 343,018.80
  4. Step 4: Simplify right side
    657,946.80x = 338,543,296,508.88
  5. Step 5: Solve for x
    x = 338,543,296,508.88/657,946.80
  6. Step 6: Final answer
    x = 514,545.09

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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.