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Finding the Fourth Proportional to 528,544.60, 729,392.01 and 286,827.17

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Solution

The fourth proportional to 528,544.60, 729,392.01 and 286,827.17 is: 395,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,544.60 : 729,392.01 = 286,827.17 : x
  2. Step 2: Convert to fraction form
    528,544.60/729,392.01 = 286,827.17/x
  3. Step 3: Cross multiply
    528,544.60x = 729,392.01 × 286,827.17
  4. Step 4: Simplify right side
    528,544.60x = 209,209,442,401.95
  5. Step 5: Solve for x
    x = 209,209,442,401.95/528,544.60
  6. Step 6: Final answer
    x = 395,821.74

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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.