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Finding the Fourth Proportional to 530,653.64, 732,315.96 and 288,946.40

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Solution

The fourth proportional to 530,653.64, 732,315.96 and 288,946.40 is: 398,753.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,653.64 : 732,315.96 = 288,946.40 : x
  2. Step 2: Convert to fraction form
    530,653.64/732,315.96 = 288,946.40/x
  3. Step 3: Cross multiply
    530,653.64x = 732,315.96 × 288,946.40
  4. Step 4: Simplify right side
    530,653.64x = 211,600,060,304.54
  5. Step 5: Solve for x
    x = 211,600,060,304.54/530,653.64
  6. Step 6: Final answer
    x = 398,753.62

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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.