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Finding the Fourth Proportional to 1,889,641.70, 2,834,462.55 and 1,553,062.40

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Solution

The fourth proportional to 1,889,641.70, 2,834,462.55 and 1,553,062.40 is: 2,329,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,641.70 : 2,834,462.55 = 1,553,062.40 : x
  2. Step 2: Convert to fraction form
    1,889,641.70/2,834,462.55 = 1,553,062.40/x
  3. Step 3: Cross multiply
    1,889,641.70x = 2,834,462.55 × 1,553,062.40
  4. Step 4: Simplify right side
    1,889,641.70x = 4,402,097,210,613.12
  5. Step 5: Solve for x
    x = 4,402,097,210,613.12/1,889,641.70
  6. Step 6: Final answer
    x = 2,329,593.60

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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.