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Finding the Fourth Proportional to 673,346.82, 930,450.34 and 640,545.06

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Solution

The fourth proportional to 673,346.82, 930,450.34 and 640,545.06 is: 885,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,346.82 : 930,450.34 = 640,545.06 : x
  2. Step 2: Convert to fraction form
    673,346.82/930,450.34 = 640,545.06/x
  3. Step 3: Cross multiply
    673,346.82x = 930,450.34 × 640,545.06
  4. Step 4: Simplify right side
    673,346.82x = 595,995,368,862.32
  5. Step 5: Solve for x
    x = 595,995,368,862.32/673,346.82
  6. Step 6: Final answer
    x = 885,123.91

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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.