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Finding the Fourth Proportional to 612,681.54, 919,317.15 and 461,860.35

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Solution

The fourth proportional to 612,681.54, 919,317.15 and 461,860.35 is: 693,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,681.54 : 919,317.15 = 461,860.35 : x
  2. Step 2: Convert to fraction form
    612,681.54/919,317.15 = 461,860.35/x
  3. Step 3: Cross multiply
    612,681.54x = 919,317.15 × 461,860.35
  4. Step 4: Simplify right side
    612,681.54x = 424,596,140,660.00
  5. Step 5: Solve for x
    x = 424,596,140,660.00/612,681.54
  6. Step 6: Final answer
    x = 693,012.79

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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.