Home / 651,669,371.20-977,504,056.80-389,775,246.40

Finding the Fourth Proportional to 651,669,371.20, 977,504,056.80 and 389,775,246.40

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Solution

The fourth proportional to 651,669,371.20, 977,504,056.80 and 389,775,246.40 is: 584,662,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,669,371.20 : 977,504,056.80 = 389,775,246.40 : x
  2. Step 2: Convert to fraction form
    651,669,371.20/977,504,056.80 = 389,775,246.40/x
  3. Step 3: Cross multiply
    651,669,371.20x = 977,504,056.80 × 389,775,246.40
  4. Step 4: Simplify right side
    651,669,371.20x = 381,006,884,596,219,584
  5. Step 5: Solve for x
    x = 381,006,884,596,219,584/651,669,371.20
  6. Step 6: Final answer
    x = 584,662,869.60

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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.