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Finding the Fourth Proportional to 573,299.20, 859,948.80 and 384,342.40

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Solution

The fourth proportional to 573,299.20, 859,948.80 and 384,342.40 is: 576,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,299.20 : 859,948.80 = 384,342.40 : x
  2. Step 2: Convert to fraction form
    573,299.20/859,948.80 = 384,342.40/x
  3. Step 3: Cross multiply
    573,299.20x = 859,948.80 × 384,342.40
  4. Step 4: Simplify right side
    573,299.20x = 330,514,785,669.12
  5. Step 5: Solve for x
    x = 330,514,785,669.12/573,299.20
  6. Step 6: Final answer
    x = 576,513.60

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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.