Home / 639,576,321.60-959,364,482.40-536,264,191.20

Finding the Fourth Proportional to 639,576,321.60, 959,364,482.40 and 536,264,191.20

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Solution

The fourth proportional to 639,576,321.60, 959,364,482.40 and 536,264,191.20 is: 804,396,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,321.60 : 959,364,482.40 = 536,264,191.20 : x
  2. Step 2: Convert to fraction form
    639,576,321.60/959,364,482.40 = 536,264,191.20/x
  3. Step 3: Cross multiply
    639,576,321.60x = 959,364,482.40 × 536,264,191.20
  4. Step 4: Simplify right side
    639,576,321.60x = 514,472,818,220,242,624
  5. Step 5: Solve for x
    x = 514,472,818,220,242,624/639,576,321.60
  6. Step 6: Final answer
    x = 804,396,286.80

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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.