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Finding the Fourth Proportional to 953,691, 1,316,046.54 and 571,643.64

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Solution

The fourth proportional to 953,691, 1,316,046.54 and 571,643.64 is: 788,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,691 : 1,316,046.54 = 571,643.64 : x
  2. Step 2: Convert to fraction form
    953,691/1,316,046.54 = 571,643.64/x
  3. Step 3: Cross multiply
    953,691x = 1,316,046.54 × 571,643.64
  4. Step 4: Simplify right side
    953,691x = 752,309,634,535.01
  5. Step 5: Solve for x
    x = 752,309,634,535.01/953,691
  6. Step 6: Final answer
    x = 788,840.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.