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Finding the Fourth Proportional to 527,999.53, 728,640.93 and 286,282.17

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Solution

The fourth proportional to 527,999.53, 728,640.93 and 286,282.17 is: 395,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.53 : 728,640.93 = 286,282.17 : x
  2. Step 2: Convert to fraction form
    527,999.53/728,640.93 = 286,282.17/x
  3. Step 3: Cross multiply
    527,999.53x = 728,640.93 × 286,282.17
  4. Step 4: Simplify right side
    527,999.53x = 208,596,906,591.22
  5. Step 5: Solve for x
    x = 208,596,906,591.22/527,999.53
  6. Step 6: Final answer
    x = 395,070.25

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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.