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Finding the Fourth Proportional to 1,299,877,710.03, 1,793,831,239.80 and 742,972,714.52

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Solution

The fourth proportional to 1,299,877,710.03, 1,793,831,239.80 and 742,972,714.52 is: 1,025,302,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,877,710.03 : 1,793,831,239.80 = 742,972,714.52 : x
  2. Step 2: Convert to fraction form
    1,299,877,710.03/1,793,831,239.80 = 742,972,714.52/x
  3. Step 3: Cross multiply
    1,299,877,710.03x = 1,793,831,239.80 × 742,972,714.52
  4. Step 4: Simplify right side
    1,299,877,710.03x = 1,332,767,665,616,013,824
  5. Step 5: Solve for x
    x = 1,332,767,665,616,013,824/1,299,877,710.03
  6. Step 6: Final answer
    x = 1,025,302,346.01

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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.