Home / 715,017.40-986,895.85-409,271.04

Finding the Fourth Proportional to 715,017.40, 986,895.85 and 409,271.04

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Solution

The fourth proportional to 715,017.40, 986,895.85 and 409,271.04 is: 564,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,017.40 : 986,895.85 = 409,271.04 : x
  2. Step 2: Convert to fraction form
    715,017.40/986,895.85 = 409,271.04/x
  3. Step 3: Cross multiply
    715,017.40x = 986,895.85 × 409,271.04
  4. Step 4: Simplify right side
    715,017.40x = 403,907,883,920.35
  5. Step 5: Solve for x
    x = 403,907,883,920.35/715,017.40
  6. Step 6: Final answer
    x = 564,892.39

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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.