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Finding the Fourth Proportional to 403,283.40, 604,925.10 and 283,014.60

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Solution

The fourth proportional to 403,283.40, 604,925.10 and 283,014.60 is: 424,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,283.40 : 604,925.10 = 283,014.60 : x
  2. Step 2: Convert to fraction form
    403,283.40/604,925.10 = 283,014.60/x
  3. Step 3: Cross multiply
    403,283.40x = 604,925.10 × 283,014.60
  4. Step 4: Simplify right side
    403,283.40x = 171,202,635,206.46
  5. Step 5: Solve for x
    x = 171,202,635,206.46/403,283.40
  6. Step 6: Final answer
    x = 424,521.90

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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.