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Finding the Fourth Proportional to 497,259.47, 686,300.37 and 293,360.30

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Solution

The fourth proportional to 497,259.47, 686,300.37 and 293,360.30 is: 404,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,259.47 : 686,300.37 = 293,360.30 : x
  2. Step 2: Convert to fraction form
    497,259.47/686,300.37 = 293,360.30/x
  3. Step 3: Cross multiply
    497,259.47x = 686,300.37 × 293,360.30
  4. Step 4: Simplify right side
    497,259.47x = 201,333,279,001.81
  5. Step 5: Solve for x
    x = 201,333,279,001.81/497,259.47
  6. Step 6: Final answer
    x = 404,885.77

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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.