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Finding the Fourth Proportional to 328,666.90, 453,562.59 and 207,860.26

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Solution

The fourth proportional to 328,666.90, 453,562.59 and 207,860.26 is: 286,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,666.90 : 453,562.59 = 207,860.26 : x
  2. Step 2: Convert to fraction form
    328,666.90/453,562.59 = 207,860.26/x
  3. Step 3: Cross multiply
    328,666.90x = 453,562.59 × 207,860.26
  4. Step 4: Simplify right side
    328,666.90x = 94,277,637,883.67
  5. Step 5: Solve for x
    x = 94,277,637,883.67/328,666.90
  6. Step 6: Final answer
    x = 286,848.59

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1.5x scale

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.