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Finding the Fourth Proportional to 1,191,705,667.68, 1,644,528,000.24 and 689,935,594.08

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Solution

The fourth proportional to 1,191,705,667.68, 1,644,528,000.24 and 689,935,594.08 is: 952,096,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,705,667.68 : 1,644,528,000.24 = 689,935,594.08 : x
  2. Step 2: Convert to fraction form
    1,191,705,667.68/1,644,528,000.24 = 689,935,594.08/x
  3. Step 3: Cross multiply
    1,191,705,667.68x = 1,644,528,000.24 × 689,935,594.08
  4. Step 4: Simplify right side
    1,191,705,667.68x = 1,134,618,402,826,778,880
  5. Step 5: Solve for x
    x = 1,134,618,402,826,778,880/1,191,705,667.68
  6. Step 6: Final answer
    x = 952,096,170.72

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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.