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Finding the Fourth Proportional to 875,985, 1,208,859.30 and 473,577

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Solution

The fourth proportional to 875,985, 1,208,859.30 and 473,577 is: 653,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,985 : 1,208,859.30 = 473,577 : x
  2. Step 2: Convert to fraction form
    875,985/1,208,859.30 = 473,577/x
  3. Step 3: Cross multiply
    875,985x = 1,208,859.30 × 473,577
  4. Step 4: Simplify right side
    875,985x = 572,487,960,716.10
  5. Step 5: Solve for x
    x = 572,487,960,716.10/875,985
  6. Step 6: Final answer
    x = 653,536.26

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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.