Home / 928,178.42-1,280,807.96-514,727.06

Finding the Fourth Proportional to 928,178.42, 1,280,807.96 and 514,727.06

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Solution

The fourth proportional to 928,178.42, 1,280,807.96 and 514,727.06 is: 710,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,178.42 : 1,280,807.96 = 514,727.06 : x
  2. Step 2: Convert to fraction form
    928,178.42/1,280,807.96 = 514,727.06/x
  3. Step 3: Cross multiply
    928,178.42x = 1,280,807.96 × 514,727.06
  4. Step 4: Simplify right side
    928,178.42x = 659,266,515,675.40
  5. Step 5: Solve for x
    x = 659,266,515,675.40/928,178.42
  6. Step 6: Final answer
    x = 710,279.94

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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.