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Finding the Fourth Proportional to 836,806.60, 1,154,704.98 and 497,228.68

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Solution

The fourth proportional to 836,806.60, 1,154,704.98 and 497,228.68 is: 686,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,806.60 : 1,154,704.98 = 497,228.68 : x
  2. Step 2: Convert to fraction form
    836,806.60/1,154,704.98 = 497,228.68/x
  3. Step 3: Cross multiply
    836,806.60x = 1,154,704.98 × 497,228.68
  4. Step 4: Simplify right side
    836,806.60x = 574,152,432,994.83
  5. Step 5: Solve for x
    x = 574,152,432,994.83/836,806.60
  6. Step 6: Final answer
    x = 686,123.21

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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.