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Finding the Fourth Proportional to 462,454.20, 693,681.30 and 130,030.20

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Solution

The fourth proportional to 462,454.20, 693,681.30 and 130,030.20 is: 195,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,454.20 : 693,681.30 = 130,030.20 : x
  2. Step 2: Convert to fraction form
    462,454.20/693,681.30 = 130,030.20/x
  3. Step 3: Cross multiply
    462,454.20x = 693,681.30 × 130,030.20
  4. Step 4: Simplify right side
    462,454.20x = 90,199,518,175.26
  5. Step 5: Solve for x
    x = 90,199,518,175.26/462,454.20
  6. Step 6: Final answer
    x = 195,045.30

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Similar ratio
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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.