Home / 623,835.80-935,139.30-308,341.40

Finding the Fourth Proportional to 623,835.80, 935,139.30 and 308,341.40

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Solution

The fourth proportional to 623,835.80, 935,139.30 and 308,341.40 is: 462,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,835.80 : 935,139.30 = 308,341.40 : x
  2. Step 2: Convert to fraction form
    623,835.80/935,139.30 = 308,341.40/x
  3. Step 3: Cross multiply
    623,835.80x = 935,139.30 × 308,341.40
  4. Step 4: Simplify right side
    623,835.80x = 288,342,160,957.02
  5. Step 5: Solve for x
    x = 288,342,160,957.02/623,835.80
  6. Step 6: Final answer
    x = 462,208.42

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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.