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Finding the Fourth Proportional to 559,872,493.80, 839,808,740.70 and 355,547,207.40

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Solution

The fourth proportional to 559,872,493.80, 839,808,740.70 and 355,547,207.40 is: 533,320,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,493.80 : 839,808,740.70 = 355,547,207.40 : x
  2. Step 2: Convert to fraction form
    559,872,493.80/839,808,740.70 = 355,547,207.40/x
  3. Step 3: Cross multiply
    559,872,493.80x = 839,808,740.70 × 355,547,207.40
  4. Step 4: Simplify right side
    559,872,493.80x = 298,591,652,505,995,712
  5. Step 5: Solve for x
    x = 298,591,652,505,995,712/559,872,493.80
  6. Step 6: Final answer
    x = 533,320,811.10

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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.