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Finding the Fourth Proportional to 314,927,999.60, 472,391,999.40 and 222,213,196.40

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Solution

The fourth proportional to 314,927,999.60, 472,391,999.40 and 222,213,196.40 is: 333,319,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,927,999.60 : 472,391,999.40 = 222,213,196.40 : x
  2. Step 2: Convert to fraction form
    314,927,999.60/472,391,999.40 = 222,213,196.40/x
  3. Step 3: Cross multiply
    314,927,999.60x = 472,391,999.40 × 222,213,196.40
  4. Step 4: Simplify right side
    314,927,999.60x = 104,971,736,140,460,880
  5. Step 5: Solve for x
    x = 104,971,736,140,460,880/314,927,999.60
  6. Step 6: Final answer
    x = 333,319,794.60

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1.5x scale

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.