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Finding the Fourth Proportional to 971,490.60, 1,454,903.10 and 784,866.60

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Solution

The fourth proportional to 971,490.60, 1,454,903.10 and 784,866.60 is: 1,175,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,490.60 : 1,454,903.10 = 784,866.60 : x
  2. Step 2: Convert to fraction form
    971,490.60/1,454,903.10 = 784,866.60/x
  3. Step 3: Cross multiply
    971,490.60x = 1,454,903.10 × 784,866.60
  4. Step 4: Simplify right side
    971,490.60x = 1,141,904,849,426.46
  5. Step 5: Solve for x
    x = 1,141,904,849,426.46/971,490.60
  6. Step 6: Final answer
    x = 1,175,415.23

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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.