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Finding the Fourth Proportional to 569,624.83, 786,423.36 and 355,055.53

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Solution

The fourth proportional to 569,624.83, 786,423.36 and 355,055.53 is: 490,189.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,624.83 : 786,423.36 = 355,055.53 : x
  2. Step 2: Convert to fraction form
    569,624.83/786,423.36 = 355,055.53/x
  3. Step 3: Cross multiply
    569,624.83x = 786,423.36 × 355,055.53
  4. Step 4: Simplify right side
    569,624.83x = 279,223,962,889.18
  5. Step 5: Solve for x
    x = 279,223,962,889.18/569,624.83
  6. Step 6: Final answer
    x = 490,189.24

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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.