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Finding the Fourth Proportional to 644,863,598.40, 965,877,554.92 and 532,930,707.68

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Solution

The fourth proportional to 644,863,598.40, 965,877,554.92 and 532,930,707.68 is: 798,224,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,863,598.40 : 965,877,554.92 = 532,930,707.68 : x
  2. Step 2: Convert to fraction form
    644,863,598.40/965,877,554.92 = 532,930,707.68/x
  3. Step 3: Cross multiply
    644,863,598.40x = 965,877,554.92 × 532,930,707.68
  4. Step 4: Simplify right side
    644,863,598.40x = 514,745,808,875,743,680
  5. Step 5: Solve for x
    x = 514,745,808,875,743,680/644,863,598.40
  6. Step 6: Final answer
    x = 798,224,322.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.