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Finding the Fourth Proportional to 873,686.89, 1,205,225.49 and 601,281.86

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Solution

The fourth proportional to 873,686.89, 1,205,225.49 and 601,281.86 is: 829,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,686.89 : 1,205,225.49 = 601,281.86 : x
  2. Step 2: Convert to fraction form
    873,686.89/1,205,225.49 = 601,281.86/x
  3. Step 3: Cross multiply
    873,686.89x = 1,205,225.49 × 601,281.86
  4. Step 4: Simplify right side
    873,686.89x = 724,680,224,346.61
  5. Step 5: Solve for x
    x = 724,680,224,346.61/873,686.89
  6. Step 6: Final answer
    x = 829,450.73

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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.