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Finding the Fourth Proportional to 525,527.86, 725,228.42 and 283,810.41

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Solution

The fourth proportional to 525,527.86, 725,228.42 and 283,810.41 is: 391,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,527.86 : 725,228.42 = 283,810.41 : x
  2. Step 2: Convert to fraction form
    525,527.86/725,228.42 = 283,810.41/x
  3. Step 3: Cross multiply
    525,527.86x = 725,228.42 × 283,810.41
  4. Step 4: Simplify right side
    525,527.86x = 205,827,370,178.66
  5. Step 5: Solve for x
    x = 205,827,370,178.66/525,527.86
  6. Step 6: Final answer
    x = 391,658.34

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Double scale
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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.