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Finding the Fourth Proportional to 554,411.40, 832,005.90 and 355,216.20

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Solution

The fourth proportional to 554,411.40, 832,005.90 and 355,216.20 is: 533,073.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,411.40 : 832,005.90 = 355,216.20 : x
  2. Step 2: Convert to fraction form
    554,411.40/832,005.90 = 355,216.20/x
  3. Step 3: Cross multiply
    554,411.40x = 832,005.90 × 355,216.20
  4. Step 4: Simplify right side
    554,411.40x = 295,541,974,175.58
  5. Step 5: Solve for x
    x = 295,541,974,175.58/554,411.40
  6. Step 6: Final answer
    x = 533,073.41

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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.