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Finding the Fourth Proportional to 1,119,745,391.40, 1,564,015,577.40 and 1,119,745,391.40

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Solution

The fourth proportional to 1,119,745,391.40, 1,564,015,577.40 and 1,119,745,391.40 is: 1,564,015,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,391.40 : 1,564,015,577.40 = 1,119,745,391.40 : x
  2. Step 2: Convert to fraction form
    1,119,745,391.40/1,564,015,577.40 = 1,119,745,391.40/x
  3. Step 3: Cross multiply
    1,119,745,391.40x = 1,564,015,577.40 × 1,119,745,391.40
  4. Step 4: Simplify right side
    1,119,745,391.40x = 1,751,299,234,871,460,352
  5. Step 5: Solve for x
    x = 1,751,299,234,871,460,352/1,119,745,391.40
  6. Step 6: Final answer
    x = 1,564,015,577.40

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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.