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Finding the Fourth Proportional to 366,643,807.80, 549,965,711.70 and 250,417,661.10

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Solution

The fourth proportional to 366,643,807.80, 549,965,711.70 and 250,417,661.10 is: 375,626,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,643,807.80 : 549,965,711.70 = 250,417,661.10 : x
  2. Step 2: Convert to fraction form
    366,643,807.80/549,965,711.70 = 250,417,661.10/x
  3. Step 3: Cross multiply
    366,643,807.80x = 549,965,711.70 × 250,417,661.10
  4. Step 4: Simplify right side
    366,643,807.80x = 137,721,127,209,110,912
  5. Step 5: Solve for x
    x = 137,721,127,209,110,912/366,643,807.80
  6. Step 6: Final answer
    x = 375,626,491.65

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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.