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Finding the Fourth Proportional to 534,139.24, 736,994.30 and 316,239.72

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Solution

The fourth proportional to 534,139.24, 736,994.30 and 316,239.72 is: 436,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,139.24 : 736,994.30 = 316,239.72 : x
  2. Step 2: Convert to fraction form
    534,139.24/736,994.30 = 316,239.72/x
  3. Step 3: Cross multiply
    534,139.24x = 736,994.30 × 316,239.72
  4. Step 4: Simplify right side
    534,139.24x = 233,066,869,492.40
  5. Step 5: Solve for x
    x = 233,066,869,492.40/534,139.24
  6. Step 6: Final answer
    x = 436,341.04

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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.