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Finding the Fourth Proportional to 459,373.32, 688,460.34 and 234,543.64

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Solution

The fourth proportional to 459,373.32, 688,460.34 and 234,543.64 is: 351,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,373.32 : 688,460.34 = 234,543.64 : x
  2. Step 2: Convert to fraction form
    459,373.32/688,460.34 = 234,543.64/x
  3. Step 3: Cross multiply
    459,373.32x = 688,460.34 × 234,543.64
  4. Step 4: Simplify right side
    459,373.32x = 161,473,994,139.24
  5. Step 5: Solve for x
    x = 161,473,994,139.24/459,373.32
  6. Step 6: Final answer
    x = 351,509.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.