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Finding the Fourth Proportional to 436,248.10, 602,012.01 and 285,341.86

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Solution

The fourth proportional to 436,248.10, 602,012.01 and 285,341.86 is: 393,764.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,248.10 : 602,012.01 = 285,341.86 : x
  2. Step 2: Convert to fraction form
    436,248.10/602,012.01 = 285,341.86/x
  3. Step 3: Cross multiply
    436,248.10x = 602,012.01 × 285,341.86
  4. Step 4: Simplify right side
    436,248.10x = 171,779,226,675.74
  5. Step 5: Solve for x
    x = 171,779,226,675.74/436,248.10
  6. Step 6: Final answer
    x = 393,764.99

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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.