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Finding the Fourth Proportional to 473,646.01, 653,623.77 and 258,781.45

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Solution

The fourth proportional to 473,646.01, 653,623.77 and 258,781.45 is: 357,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,646.01 : 653,623.77 = 258,781.45 : x
  2. Step 2: Convert to fraction form
    473,646.01/653,623.77 = 258,781.45/x
  3. Step 3: Cross multiply
    473,646.01x = 653,623.77 × 258,781.45
  4. Step 4: Simplify right side
    473,646.01x = 169,145,706,955.07
  5. Step 5: Solve for x
    x = 169,145,706,955.07/473,646.01
  6. Step 6: Final answer
    x = 357,114.18

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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.