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Finding the Fourth Proportional to 671,709.24, 927,143.82 and 457,208.28

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Solution

The fourth proportional to 671,709.24, 927,143.82 and 457,208.28 is: 631,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,709.24 : 927,143.82 = 457,208.28 : x
  2. Step 2: Convert to fraction form
    671,709.24/927,143.82 = 457,208.28/x
  3. Step 3: Cross multiply
    671,709.24x = 927,143.82 × 457,208.28
  4. Step 4: Simplify right side
    671,709.24x = 423,897,831,254.83
  5. Step 5: Solve for x
    x = 423,897,831,254.83/671,709.24
  6. Step 6: Final answer
    x = 631,073.40

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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.