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Finding the Fourth Proportional to 924,831,920.40, 1,387,247,880.60 and 924,831,920.40

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Solution

The fourth proportional to 924,831,920.40, 1,387,247,880.60 and 924,831,920.40 is: 1,387,247,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,831,920.40 : 1,387,247,880.60 = 924,831,920.40 : x
  2. Step 2: Convert to fraction form
    924,831,920.40/1,387,247,880.60 = 924,831,920.40/x
  3. Step 3: Cross multiply
    924,831,920.40x = 1,387,247,880.60 × 924,831,920.40
  4. Step 4: Simplify right side
    924,831,920.40x = 1,282,971,121,486,127,872
  5. Step 5: Solve for x
    x = 1,282,971,121,486,127,872/924,831,920.40
  6. Step 6: Final answer
    x = 1,387,247,880.60

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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.