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Finding the Fourth Proportional to 633,565.32, 874,283.40 and 347,035.50

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Solution

The fourth proportional to 633,565.32, 874,283.40 and 347,035.50 is: 478,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,565.32 : 874,283.40 = 347,035.50 : x
  2. Step 2: Convert to fraction form
    633,565.32/874,283.40 = 347,035.50/x
  3. Step 3: Cross multiply
    633,565.32x = 874,283.40 × 347,035.50
  4. Step 4: Simplify right side
    633,565.32x = 303,407,376,860.70
  5. Step 5: Solve for x
    x = 303,407,376,860.70/633,565.32
  6. Step 6: Final answer
    x = 478,888.86

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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.