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Finding the Fourth Proportional to 586,442.20, 879,663.30 and 350,051.80

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Solution

The fourth proportional to 586,442.20, 879,663.30 and 350,051.80 is: 525,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,442.20 : 879,663.30 = 350,051.80 : x
  2. Step 2: Convert to fraction form
    586,442.20/879,663.30 = 350,051.80/x
  3. Step 3: Cross multiply
    586,442.20x = 879,663.30 × 350,051.80
  4. Step 4: Simplify right side
    586,442.20x = 307,927,721,558.94
  5. Step 5: Solve for x
    x = 307,927,721,558.94/586,442.20
  6. Step 6: Final answer
    x = 525,077.70

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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.