Home / 879,127.47-1,213,309.85-497,229.75

Finding the Fourth Proportional to 879,127.47, 1,213,309.85 and 497,229.75

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Solution

The fourth proportional to 879,127.47, 1,213,309.85 and 497,229.75 is: 686,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,127.47 : 1,213,309.85 = 497,229.75 : x
  2. Step 2: Convert to fraction form
    879,127.47/1,213,309.85 = 497,229.75/x
  3. Step 3: Cross multiply
    879,127.47x = 1,213,309.85 × 497,229.75
  4. Step 4: Simplify right side
    879,127.47x = 603,293,750,901.89
  5. Step 5: Solve for x
    x = 603,293,750,901.89/879,127.47
  6. Step 6: Final answer
    x = 686,241.50

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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.