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Finding the Fourth Proportional to 570,033,339.85, 855,178,940.85 and 307,712,260.26

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Solution

The fourth proportional to 570,033,339.85, 855,178,940.85 and 307,712,260.26 is: 461,637,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,033,339.85 : 855,178,940.85 = 307,712,260.26 : x
  2. Step 2: Convert to fraction form
    570,033,339.85/855,178,940.85 = 307,712,260.26/x
  3. Step 3: Cross multiply
    570,033,339.85x = 855,178,940.85 × 307,712,260.26
  4. Step 4: Simplify right side
    570,033,339.85x = 263,149,044,814,552,448
  5. Step 5: Solve for x
    x = 263,149,044,814,552,448/570,033,339.85
  6. Step 6: Final answer
    x = 461,637,989.25

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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.