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Finding the Fourth Proportional to 334,595,411.80, 501,893,117.70 and 265,720,658.20

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Solution

The fourth proportional to 334,595,411.80, 501,893,117.70 and 265,720,658.20 is: 398,580,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,595,411.80 : 501,893,117.70 = 265,720,658.20 : x
  2. Step 2: Convert to fraction form
    334,595,411.80/501,893,117.70 = 265,720,658.20/x
  3. Step 3: Cross multiply
    334,595,411.80x = 501,893,117.70 × 265,720,658.20
  4. Step 4: Simplify right side
    334,595,411.80x = 133,363,369,581,294,064
  5. Step 5: Solve for x
    x = 133,363,369,581,294,064/334,595,411.80
  6. Step 6: Final answer
    x = 398,580,987.30

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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.