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Finding the Fourth Proportional to 554,412.40, 832,007.40 and 355,217.20

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Solution

The fourth proportional to 554,412.40, 832,007.40 and 355,217.20 is: 533,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,412.40 : 832,007.40 = 355,217.20 : x
  2. Step 2: Convert to fraction form
    554,412.40/832,007.40 = 355,217.20/x
  3. Step 3: Cross multiply
    554,412.40x = 832,007.40 × 355,217.20
  4. Step 4: Simplify right side
    554,412.40x = 295,543,339,007.28
  5. Step 5: Solve for x
    x = 295,543,339,007.28/554,412.40
  6. Step 6: Final answer
    x = 533,074.91

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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.