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Finding the Fourth Proportional to 583,920.42, 805,810.80 and 342,154.86

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Solution

The fourth proportional to 583,920.42, 805,810.80 and 342,154.86 is: 472,174.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,920.42 : 805,810.80 = 342,154.86 : x
  2. Step 2: Convert to fraction form
    583,920.42/805,810.80 = 342,154.86/x
  3. Step 3: Cross multiply
    583,920.42x = 805,810.80 × 342,154.86
  4. Step 4: Simplify right side
    583,920.42x = 275,712,081,460.49
  5. Step 5: Solve for x
    x = 275,712,081,460.49/583,920.42
  6. Step 6: Final answer
    x = 472,174.07

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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.