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Finding the Fourth Proportional to 517,784.35, 714,174.33 and 345,615.51

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Solution

The fourth proportional to 517,784.35, 714,174.33 and 345,615.51 is: 476,703.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,784.35 : 714,174.33 = 345,615.51 : x
  2. Step 2: Convert to fraction form
    517,784.35/714,174.33 = 345,615.51/x
  3. Step 3: Cross multiply
    517,784.35x = 714,174.33 × 345,615.51
  4. Step 4: Simplify right side
    517,784.35x = 246,829,727,077.29
  5. Step 5: Solve for x
    x = 246,829,727,077.29/517,784.35
  6. Step 6: Final answer
    x = 476,703.72

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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.