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Finding the Fourth Proportional to 611,977.60, 917,966.22 and 191,253.48

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Solution

The fourth proportional to 611,977.60, 917,966.22 and 191,253.48 is: 286,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,977.60 : 917,966.22 = 191,253.48 : x
  2. Step 2: Convert to fraction form
    611,977.60/917,966.22 = 191,253.48/x
  3. Step 3: Cross multiply
    611,977.60x = 917,966.22 × 191,253.48
  4. Step 4: Simplify right side
    611,977.60x = 175,564,234,097.45
  5. Step 5: Solve for x
    x = 175,564,234,097.45/611,977.60
  6. Step 6: Final answer
    x = 286,880.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.