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Finding the Fourth Proportional to 654,572.71, 903,315.93 and 368,090.29

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Solution

The fourth proportional to 654,572.71, 903,315.93 and 368,090.29 is: 507,967.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,572.71 : 903,315.93 = 368,090.29 : x
  2. Step 2: Convert to fraction form
    654,572.71/903,315.93 = 368,090.29/x
  3. Step 3: Cross multiply
    654,572.71x = 903,315.93 × 368,090.29
  4. Step 4: Simplify right side
    654,572.71x = 332,501,818,118.74
  5. Step 5: Solve for x
    x = 332,501,818,118.74/654,572.71
  6. Step 6: Final answer
    x = 507,967.74

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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.