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Finding the Fourth Proportional to 768,537.40, 1,060,537.62 and 429,027.16

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Solution

The fourth proportional to 768,537.40, 1,060,537.62 and 429,027.16 is: 592,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,537.40 : 1,060,537.62 = 429,027.16 : x
  2. Step 2: Convert to fraction form
    768,537.40/1,060,537.62 = 429,027.16/x
  3. Step 3: Cross multiply
    768,537.40x = 1,060,537.62 × 429,027.16
  4. Step 4: Simplify right side
    768,537.40x = 454,999,443,181.76
  5. Step 5: Solve for x
    x = 454,999,443,181.76/768,537.40
  6. Step 6: Final answer
    x = 592,032.92

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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.