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Finding the Fourth Proportional to 608,315,228.40, 912,472,842.60 and 572,483,420.40

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Solution

The fourth proportional to 608,315,228.40, 912,472,842.60 and 572,483,420.40 is: 858,725,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,315,228.40 : 912,472,842.60 = 572,483,420.40 : x
  2. Step 2: Convert to fraction form
    608,315,228.40/912,472,842.60 = 572,483,420.40/x
  3. Step 3: Cross multiply
    608,315,228.40x = 912,472,842.60 × 572,483,420.40
  4. Step 4: Simplify right side
    608,315,228.40x = 522,375,573,953,758,848
  5. Step 5: Solve for x
    x = 522,375,573,953,758,848/608,315,228.40
  6. Step 6: Final answer
    x = 858,725,130.60

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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.