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Finding the Fourth Proportional to 673,348.82, 930,453.10 and 640,547.06

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Solution

The fourth proportional to 673,348.82, 930,453.10 and 640,547.06 is: 885,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,348.82 : 930,453.10 = 640,547.06 : x
  2. Step 2: Convert to fraction form
    673,348.82/930,453.10 = 640,547.06/x
  3. Step 3: Cross multiply
    673,348.82x = 930,453.10 × 640,547.06
  4. Step 4: Simplify right side
    673,348.82x = 595,998,997,672.89
  5. Step 5: Solve for x
    x = 595,998,997,672.89/673,348.82
  6. Step 6: Final answer
    x = 885,126.67

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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.