Home / 715,312.04-986,886.47-443,280.68

Finding the Fourth Proportional to 715,312.04, 986,886.47 and 443,280.68

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Solution

The fourth proportional to 715,312.04, 986,886.47 and 443,280.68 is: 611,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,312.04 : 986,886.47 = 443,280.68 : x
  2. Step 2: Convert to fraction form
    715,312.04/986,886.47 = 443,280.68/x
  3. Step 3: Cross multiply
    715,312.04x = 986,886.47 × 443,280.68
  4. Step 4: Simplify right side
    715,312.04x = 437,467,705,504.40
  5. Step 5: Solve for x
    x = 437,467,705,504.40/715,312.04
  6. Step 6: Final answer
    x = 611,576.04

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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.