Home / 623,755,971.80-934,626,188.10-393,312,656.60

Finding the Fourth Proportional to 623,755,971.80, 934,626,188.10 and 393,312,656.60

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Solution

The fourth proportional to 623,755,971.80, 934,626,188.10 and 393,312,656.60 is: 589,333,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,755,971.80 : 934,626,188.10 = 393,312,656.60 : x
  2. Step 2: Convert to fraction form
    623,755,971.80/934,626,188.10 = 393,312,656.60/x
  3. Step 3: Cross multiply
    623,755,971.80x = 934,626,188.10 × 393,312,656.60
  4. Step 4: Simplify right side
    623,755,971.80x = 367,600,308,969,542,336
  5. Step 5: Solve for x
    x = 367,600,308,969,542,336/623,755,971.80
  6. Step 6: Final answer
    x = 589,333,530.40

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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.