Home / 686,075.90-1,029,116.10-173,740.76

Finding the Fourth Proportional to 686,075.90, 1,029,116.10 and 173,740.76

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Solution

The fourth proportional to 686,075.90, 1,029,116.10 and 173,740.76 is: 260,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,075.90 : 1,029,116.10 = 173,740.76 : x
  2. Step 2: Convert to fraction form
    686,075.90/1,029,116.10 = 173,740.76/x
  3. Step 3: Cross multiply
    686,075.90x = 1,029,116.10 × 173,740.76
  4. Step 4: Simplify right side
    686,075.90x = 178,799,413,342.24
  5. Step 5: Solve for x
    x = 178,799,413,342.24/686,075.90
  6. Step 6: Final answer
    x = 260,611.71

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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.