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Finding the Fourth Proportional to 468,368.13, 646,347.51 and 253,507.86

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Solution

The fourth proportional to 468,368.13, 646,347.51 and 253,507.86 is: 349,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,368.13 : 646,347.51 = 253,507.86 : x
  2. Step 2: Convert to fraction form
    468,368.13/646,347.51 = 253,507.86/x
  3. Step 3: Cross multiply
    468,368.13x = 646,347.51 × 253,507.86
  4. Step 4: Simplify right side
    468,368.13x = 163,854,174,076.43
  5. Step 5: Solve for x
    x = 163,854,174,076.43/468,368.13
  6. Step 6: Final answer
    x = 349,840.57

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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.