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Finding the Fourth Proportional to 533,705.77, 736,780.49 and 307,307.53

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Solution

The fourth proportional to 533,705.77, 736,780.49 and 307,307.53 is: 424,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,705.77 : 736,780.49 = 307,307.53 : x
  2. Step 2: Convert to fraction form
    533,705.77/736,780.49 = 307,307.53/x
  3. Step 3: Cross multiply
    533,705.77x = 736,780.49 × 307,307.53
  4. Step 4: Simplify right side
    533,705.77x = 226,418,192,534.09
  5. Step 5: Solve for x
    x = 226,418,192,534.09/533,705.77
  6. Step 6: Final answer
    x = 424,237.86

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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.