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Finding the Fourth Proportional to 436,638.80, 602,518.64 and 245,648.10

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Solution

The fourth proportional to 436,638.80, 602,518.64 and 245,648.10 is: 338,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,638.80 : 602,518.64 = 245,648.10 : x
  2. Step 2: Convert to fraction form
    436,638.80/602,518.64 = 245,648.10/x
  3. Step 3: Cross multiply
    436,638.80x = 602,518.64 × 245,648.10
  4. Step 4: Simplify right side
    436,638.80x = 148,007,559,130.58
  5. Step 5: Solve for x
    x = 148,007,559,130.58/436,638.80
  6. Step 6: Final answer
    x = 338,970.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.