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Finding the Fourth Proportional to 525,677.65, 725,434.72 and 283,960.15

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Solution

The fourth proportional to 525,677.65, 725,434.72 and 283,960.15 is: 391,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,677.65 : 725,434.72 = 283,960.15 : x
  2. Step 2: Convert to fraction form
    525,677.65/725,434.72 = 283,960.15/x
  3. Step 3: Cross multiply
    525,677.65x = 725,434.72 × 283,960.15
  4. Step 4: Simplify right side
    525,677.65x = 205,994,549,382.92
  5. Step 5: Solve for x
    x = 205,994,549,382.92/525,677.65
  6. Step 6: Final answer
    x = 391,864.77

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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.