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Finding the Fourth Proportional to 889,059,528, 1,226,902,148.64 and 497,918,952

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Solution

The fourth proportional to 889,059,528, 1,226,902,148.64 and 497,918,952 is: 687,128,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,059,528 : 1,226,902,148.64 = 497,918,952 : x
  2. Step 2: Convert to fraction form
    889,059,528/1,226,902,148.64 = 497,918,952/x
  3. Step 3: Cross multiply
    889,059,528x = 1,226,902,148.64 × 497,918,952
  4. Step 4: Simplify right side
    889,059,528x = 610,897,832,057,377,024
  5. Step 5: Solve for x
    x = 610,897,832,057,377,024/889,059,528
  6. Step 6: Final answer
    x = 687,128,153.76

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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.