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Finding the Fourth Proportional to 975,655.92, 1,463,483.88 and 643,154.16

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Solution

The fourth proportional to 975,655.92, 1,463,483.88 and 643,154.16 is: 964,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,655.92 : 1,463,483.88 = 643,154.16 : x
  2. Step 2: Convert to fraction form
    975,655.92/1,463,483.88 = 643,154.16/x
  3. Step 3: Cross multiply
    975,655.92x = 1,463,483.88 × 643,154.16
  4. Step 4: Simplify right side
    975,655.92x = 941,245,745,514.94
  5. Step 5: Solve for x
    x = 941,245,745,514.94/975,655.92
  6. Step 6: Final answer
    x = 964,731.24

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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.