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Finding the Fourth Proportional to 520,030,572.80, 780,161,332.80 and 174,974,460.80

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Solution

The fourth proportional to 520,030,572.80, 780,161,332.80 and 174,974,460.80 is: 262,500,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,030,572.80 : 780,161,332.80 = 174,974,460.80 : x
  2. Step 2: Convert to fraction form
    520,030,572.80/780,161,332.80 = 174,974,460.80/x
  3. Step 3: Cross multiply
    520,030,572.80x = 780,161,332.80 × 174,974,460.80
  4. Step 4: Simplify right side
    520,030,572.80x = 136,508,308,543,689,360
  5. Step 5: Solve for x
    x = 136,508,308,543,689,360/520,030,572.80
  6. Step 6: Final answer
    x = 262,500,544.55

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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.