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Finding the Fourth Proportional to 292,897.72, 439,348.92 and 191,781.01

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Solution

The fourth proportional to 292,897.72, 439,348.92 and 191,781.01 is: 287,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,897.72 : 439,348.92 = 191,781.01 : x
  2. Step 2: Convert to fraction form
    292,897.72/439,348.92 = 191,781.01/x
  3. Step 3: Cross multiply
    292,897.72x = 439,348.92 × 191,781.01
  4. Step 4: Simplify right side
    292,897.72x = 84,258,779,620.01
  5. Step 5: Solve for x
    x = 84,258,779,620.01/292,897.72
  6. Step 6: Final answer
    x = 287,673.05

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1.5x scale

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.