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Finding the Fourth Proportional to 623,913.80, 935,409.90 and 249,744.20

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Solution

The fourth proportional to 623,913.80, 935,409.90 and 249,744.20 is: 374,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,913.80 : 935,409.90 = 249,744.20 : x
  2. Step 2: Convert to fraction form
    623,913.80/935,409.90 = 249,744.20/x
  3. Step 3: Cross multiply
    623,913.80x = 935,409.90 × 249,744.20
  4. Step 4: Simplify right side
    623,913.80x = 233,613,197,147.58
  5. Step 5: Solve for x
    x = 233,613,197,147.58/623,913.80
  6. Step 6: Final answer
    x = 374,431.85

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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.