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Finding the Fourth Proportional to 623,756,347.80, 934,626,752.10 and 393,313,032.60

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Solution

The fourth proportional to 623,756,347.80, 934,626,752.10 and 393,313,032.60 is: 589,334,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,756,347.80 : 934,626,752.10 = 393,313,032.60 : x
  2. Step 2: Convert to fraction form
    623,756,347.80/934,626,752.10 = 393,313,032.60/x
  3. Step 3: Cross multiply
    623,756,347.80x = 934,626,752.10 × 393,313,032.60
  4. Step 4: Simplify right side
    623,756,347.80x = 367,600,882,217,539,456
  5. Step 5: Solve for x
    x = 367,600,882,217,539,456/623,756,347.80
  6. Step 6: Final answer
    x = 589,334,094.18

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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.