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Finding the Fourth Proportional to 673,638,934.12, 930,531,607.22 and 507,630,050.28

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Solution

The fourth proportional to 673,638,934.12, 930,531,607.22 and 507,630,050.28 is: 701,215,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,638,934.12 : 930,531,607.22 = 507,630,050.28 : x
  2. Step 2: Convert to fraction form
    673,638,934.12/930,531,607.22 = 507,630,050.28/x
  3. Step 3: Cross multiply
    673,638,934.12x = 930,531,607.22 × 507,630,050.28
  4. Step 4: Simplify right side
    673,638,934.12x = 472,365,806,560,217,792
  5. Step 5: Solve for x
    x = 472,365,806,560,217,792/673,638,934.12
  6. Step 6: Final answer
    x = 701,215,120.79

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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.