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Finding the Fourth Proportional to 586,116,019.80, 879,174,029.70 and 240,891,946.20

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Solution

The fourth proportional to 586,116,019.80, 879,174,029.70 and 240,891,946.20 is: 361,337,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,116,019.80 : 879,174,029.70 = 240,891,946.20 : x
  2. Step 2: Convert to fraction form
    586,116,019.80/879,174,029.70 = 240,891,946.20/x
  3. Step 3: Cross multiply
    586,116,019.80x = 879,174,029.70 × 240,891,946.20
  4. Step 4: Simplify right side
    586,116,019.80x = 211,785,943,062,929,600
  5. Step 5: Solve for x
    x = 211,785,943,062,929,600/586,116,019.80
  6. Step 6: Final answer
    x = 361,337,919.30

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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.