Home / 645,531.16-966,425.82-577,149.40

Finding the Fourth Proportional to 645,531.16, 966,425.82 and 577,149.40

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Solution

The fourth proportional to 645,531.16, 966,425.82 and 577,149.40 is: 864,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,531.16 : 966,425.82 = 577,149.40 : x
  2. Step 2: Convert to fraction form
    645,531.16/966,425.82 = 577,149.40/x
  3. Step 3: Cross multiply
    645,531.16x = 966,425.82 × 577,149.40
  4. Step 4: Simplify right side
    645,531.16x = 557,772,082,157.51
  5. Step 5: Solve for x
    x = 557,772,082,157.51/645,531.16
  6. Step 6: Final answer
    x = 864,051.37

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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.