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Finding the Fourth Proportional to 528,625.56, 729,510.28 and 286,911.04

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Solution

The fourth proportional to 528,625.56, 729,510.28 and 286,911.04 is: 395,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,625.56 : 729,510.28 = 286,911.04 : x
  2. Step 2: Convert to fraction form
    528,625.56/729,510.28 = 286,911.04/x
  3. Step 3: Cross multiply
    528,625.56x = 729,510.28 × 286,911.04
  4. Step 4: Simplify right side
    528,625.56x = 209,304,553,125.49
  5. Step 5: Solve for x
    x = 209,304,553,125.49/528,625.56
  6. Step 6: Final answer
    x = 395,941.04

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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.