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Finding the Fourth Proportional to 487,989,368.70, 732,550,923.45 and 294,119,691.90

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Solution

The fourth proportional to 487,989,368.70, 732,550,923.45 and 294,119,691.90 is: 441,521,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,989,368.70 : 732,550,923.45 = 294,119,691.90 : x
  2. Step 2: Convert to fraction form
    487,989,368.70/732,550,923.45 = 294,119,691.90/x
  3. Step 3: Cross multiply
    487,989,368.70x = 732,550,923.45 × 294,119,691.90
  4. Step 4: Simplify right side
    487,989,368.70x = 215,457,651,906,174,496
  5. Step 5: Solve for x
    x = 215,457,651,906,174,496/487,989,368.70
  6. Step 6: Final answer
    x = 441,521,200.51

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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.