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Finding the Fourth Proportional to 634,809.12, 874,945.71 and 604,912.86

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Solution

The fourth proportional to 634,809.12, 874,945.71 and 604,912.86 is: 833,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,809.12 : 874,945.71 = 604,912.86 : x
  2. Step 2: Convert to fraction form
    634,809.12/874,945.71 = 604,912.86/x
  3. Step 3: Cross multiply
    634,809.12x = 874,945.71 × 604,912.86
  4. Step 4: Simplify right side
    634,809.12x = 529,265,911,780.83
  5. Step 5: Solve for x
    x = 529,265,911,780.83/634,809.12
  6. Step 6: Final answer
    x = 833,740.25

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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.