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Finding the Fourth Proportional to 629,683.08, 868,983 and 357,746.04

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Solution

The fourth proportional to 629,683.08, 868,983 and 357,746.04 is: 493,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,683.08 : 868,983 = 357,746.04 : x
  2. Step 2: Convert to fraction form
    629,683.08/868,983 = 357,746.04/x
  3. Step 3: Cross multiply
    629,683.08x = 868,983 × 357,746.04
  4. Step 4: Simplify right side
    629,683.08x = 310,875,227,077.32
  5. Step 5: Solve for x
    x = 310,875,227,077.32/629,683.08
  6. Step 6: Final answer
    x = 493,701.10

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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.