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Finding the Fourth Proportional to 633,590.78, 874,347.93 and 343,196.87

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Solution

The fourth proportional to 633,590.78, 874,347.93 and 343,196.87 is: 473,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,590.78 : 874,347.93 = 343,196.87 : x
  2. Step 2: Convert to fraction form
    633,590.78/874,347.93 = 343,196.87/x
  3. Step 3: Cross multiply
    633,590.78x = 874,347.93 × 343,196.87
  4. Step 4: Simplify right side
    633,590.78x = 300,073,468,495.24
  5. Step 5: Solve for x
    x = 300,073,468,495.24/633,590.78
  6. Step 6: Final answer
    x = 473,607.70

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1.5x scale

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.