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Finding the Fourth Proportional to 616,078.40, 924,424.80 and 350,043.20

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Solution

The fourth proportional to 616,078.40, 924,424.80 and 350,043.20 is: 525,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,078.40 : 924,424.80 = 350,043.20 : x
  2. Step 2: Convert to fraction form
    616,078.40/924,424.80 = 350,043.20/x
  3. Step 3: Cross multiply
    616,078.40x = 924,424.80 × 350,043.20
  4. Step 4: Simplify right side
    616,078.40x = 323,588,615,151.36
  5. Step 5: Solve for x
    x = 323,588,615,151.36/616,078.40
  6. Step 6: Final answer
    x = 525,239.34

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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.