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Finding the Fourth Proportional to 217,615,300.40, 305,064,528.40 and 217,615,300.40

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Solution

The fourth proportional to 217,615,300.40, 305,064,528.40 and 217,615,300.40 is: 305,064,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,615,300.40 : 305,064,528.40 = 217,615,300.40 : x
  2. Step 2: Convert to fraction form
    217,615,300.40/305,064,528.40 = 217,615,300.40/x
  3. Step 3: Cross multiply
    217,615,300.40x = 305,064,528.40 × 217,615,300.40
  4. Step 4: Simplify right side
    217,615,300.40x = 66,386,708,989,150,328
  5. Step 5: Solve for x
    x = 66,386,708,989,150,328/217,615,300.40
  6. Step 6: Final answer
    x = 305,064,528.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.