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Finding the Fourth Proportional to 888,708.94, 1,226,419.16 and 486,300.94

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Solution

The fourth proportional to 888,708.94, 1,226,419.16 and 486,300.94 is: 671,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,708.94 : 1,226,419.16 = 486,300.94 : x
  2. Step 2: Convert to fraction form
    888,708.94/1,226,419.16 = 486,300.94/x
  3. Step 3: Cross multiply
    888,708.94x = 1,226,419.16 × 486,300.94
  4. Step 4: Simplify right side
    888,708.94x = 596,408,784,844.46
  5. Step 5: Solve for x
    x = 596,408,784,844.46/888,708.94
  6. Step 6: Final answer
    x = 671,095.74

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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.