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Finding the Fourth Proportional to 895,404.40, 1,344,143.40 and 540,818.80

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Solution

The fourth proportional to 895,404.40, 1,344,143.40 and 540,818.80 is: 811,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,404.40 : 1,344,143.40 = 540,818.80 : x
  2. Step 2: Convert to fraction form
    895,404.40/1,344,143.40 = 540,818.80/x
  3. Step 3: Cross multiply
    895,404.40x = 1,344,143.40 × 540,818.80
  4. Step 4: Simplify right side
    895,404.40x = 726,938,020,615.92
  5. Step 5: Solve for x
    x = 726,938,020,615.92/895,404.40
  6. Step 6: Final answer
    x = 811,854.42

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Double scale
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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.