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Finding the Fourth Proportional to 545,575.47, 752,893.72 and 316,265.57

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Solution

The fourth proportional to 545,575.47, 752,893.72 and 316,265.57 is: 436,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,575.47 : 752,893.72 = 316,265.57 : x
  2. Step 2: Convert to fraction form
    545,575.47/752,893.72 = 316,265.57/x
  3. Step 3: Cross multiply
    545,575.47x = 752,893.72 × 316,265.57
  4. Step 4: Simplify right side
    545,575.47x = 238,114,362,017.90
  5. Step 5: Solve for x
    x = 238,114,362,017.90/545,575.47
  6. Step 6: Final answer
    x = 436,446.24

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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.