Home / 686,692.80-1,030,881.60-433,972.80

Finding the Fourth Proportional to 686,692.80, 1,030,881.60 and 433,972.80

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Solution

The fourth proportional to 686,692.80, 1,030,881.60 and 433,972.80 is: 651,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,692.80 : 1,030,881.60 = 433,972.80 : x
  2. Step 2: Convert to fraction form
    686,692.80/1,030,881.60 = 433,972.80/x
  3. Step 3: Cross multiply
    686,692.80x = 1,030,881.60 × 433,972.80
  4. Step 4: Simplify right side
    686,692.80x = 447,374,574,420.48
  5. Step 5: Solve for x
    x = 447,374,574,420.48/686,692.80
  6. Step 6: Final answer
    x = 651,491.58

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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.