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Finding the Fourth Proportional to 551,737.48, 761,373.42 and 322,316.01

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Solution

The fourth proportional to 551,737.48, 761,373.42 and 322,316.01 is: 444,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,737.48 : 761,373.42 = 322,316.01 : x
  2. Step 2: Convert to fraction form
    551,737.48/761,373.42 = 322,316.01/x
  3. Step 3: Cross multiply
    551,737.48x = 761,373.42 × 322,316.01
  4. Step 4: Simplify right side
    551,737.48x = 245,402,842,854.45
  5. Step 5: Solve for x
    x = 245,402,842,854.45/551,737.48
  6. Step 6: Final answer
    x = 444,781.90

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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.