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Finding the Fourth Proportional to 528,563.68, 729,423.23 and 286,848.34

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Solution

The fourth proportional to 528,563.68, 729,423.23 and 286,848.34 is: 395,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,563.68 : 729,423.23 = 286,848.34 : x
  2. Step 2: Convert to fraction form
    528,563.68/729,423.23 = 286,848.34/x
  3. Step 3: Cross multiply
    528,563.68x = 729,423.23 × 286,848.34
  4. Step 4: Simplify right side
    528,563.68x = 209,233,839,425.14
  5. Step 5: Solve for x
    x = 209,233,839,425.14/528,563.68
  6. Step 6: Final answer
    x = 395,853.61

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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.