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Finding the Fourth Proportional to 586,872,001.20, 880,308,001.80 and 357,289,489.20

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Solution

The fourth proportional to 586,872,001.20, 880,308,001.80 and 357,289,489.20 is: 535,934,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,872,001.20 : 880,308,001.80 = 357,289,489.20 : x
  2. Step 2: Convert to fraction form
    586,872,001.20/880,308,001.80 = 357,289,489.20/x
  3. Step 3: Cross multiply
    586,872,001.20x = 880,308,001.80 × 357,289,489.20
  4. Step 4: Simplify right side
    586,872,001.20x = 314,524,796,301,794,624
  5. Step 5: Solve for x
    x = 314,524,796,301,794,624/586,872,001.20
  6. Step 6: Final answer
    x = 535,934,233.80

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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.