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Finding the Fourth Proportional to 672,564,706.94, 928,139,693.65 and 375,206,950.13

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Solution

The fourth proportional to 672,564,706.94, 928,139,693.65 and 375,206,950.13 is: 517,785,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,564,706.94 : 928,139,693.65 = 375,206,950.13 : x
  2. Step 2: Convert to fraction form
    672,564,706.94/928,139,693.65 = 375,206,950.13/x
  3. Step 3: Cross multiply
    672,564,706.94x = 928,139,693.65 × 375,206,950.13
  4. Step 4: Simplify right side
    672,564,706.94x = 348,244,463,743,430,336
  5. Step 5: Solve for x
    x = 348,244,463,743,430,336/672,564,706.94
  6. Step 6: Final answer
    x = 517,785,813.24

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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.