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Finding the Fourth Proportional to 1,200,741,275.04, 1,656,932,487.63 and 730,790,655.96

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Solution

The fourth proportional to 1,200,741,275.04, 1,656,932,487.63 and 730,790,655.96 is: 1,008,436,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,741,275.04 : 1,656,932,487.63 = 730,790,655.96 : x
  2. Step 2: Convert to fraction form
    1,200,741,275.04/1,656,932,487.63 = 730,790,655.96/x
  3. Step 3: Cross multiply
    1,200,741,275.04x = 1,656,932,487.63 × 730,790,655.96
  4. Step 4: Simplify right side
    1,200,741,275.04x = 1,210,870,779,516,562,432
  5. Step 5: Solve for x
    x = 1,210,870,779,516,562,432/1,200,741,275.04
  6. Step 6: Final answer
    x = 1,008,436,042.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.