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Finding the Fourth Proportional to 832,393.40, 1,248,359.70 and 333,807.80

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Solution

The fourth proportional to 832,393.40, 1,248,359.70 and 333,807.80 is: 500,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,393.40 : 1,248,359.70 = 333,807.80 : x
  2. Step 2: Convert to fraction form
    832,393.40/1,248,359.70 = 333,807.80/x
  3. Step 3: Cross multiply
    832,393.40x = 1,248,359.70 × 333,807.80
  4. Step 4: Simplify right side
    832,393.40x = 416,712,205,065.66
  5. Step 5: Solve for x
    x = 416,712,205,065.66/832,393.40
  6. Step 6: Final answer
    x = 500,619.30

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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.