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Finding the Fourth Proportional to 316,705.80, 437,061.10 and 180,737.04

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Solution

The fourth proportional to 316,705.80, 437,061.10 and 180,737.04 is: 249,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,705.80 : 437,061.10 = 180,737.04 : x
  2. Step 2: Convert to fraction form
    316,705.80/437,061.10 = 180,737.04/x
  3. Step 3: Cross multiply
    316,705.80x = 437,061.10 × 180,737.04
  4. Step 4: Simplify right side
    316,705.80x = 78,993,129,513.14
  5. Step 5: Solve for x
    x = 78,993,129,513.14/316,705.80
  6. Step 6: Final answer
    x = 249,421.16

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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.