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Finding the Fourth Proportional to 372,737.70, 559,106.55 and 313,688.70

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Solution

The fourth proportional to 372,737.70, 559,106.55 and 313,688.70 is: 470,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,737.70 : 559,106.55 = 313,688.70 : x
  2. Step 2: Convert to fraction form
    372,737.70/559,106.55 = 313,688.70/x
  3. Step 3: Cross multiply
    372,737.70x = 559,106.55 × 313,688.70
  4. Step 4: Simplify right side
    372,737.70x = 175,385,406,830.99
  5. Step 5: Solve for x
    x = 175,385,406,830.99/372,737.70
  6. Step 6: Final answer
    x = 470,533.05

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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.