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Finding the Fourth Proportional to 673,673.58, 929,448.74 and 480,111.77

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Solution

The fourth proportional to 673,673.58, 929,448.74 and 480,111.77 is: 662,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,673.58 : 929,448.74 = 480,111.77 : x
  2. Step 2: Convert to fraction form
    673,673.58/929,448.74 = 480,111.77/x
  3. Step 3: Cross multiply
    673,673.58x = 929,448.74 × 480,111.77
  4. Step 4: Simplify right side
    673,673.58x = 446,239,272,637.87
  5. Step 5: Solve for x
    x = 446,239,272,637.87/673,673.58
  6. Step 6: Final answer
    x = 662,396.87

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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.