Home / 931,857,558.96-1,285,990,347.60-514,196,740.56

Finding the Fourth Proportional to 931,857,558.96, 1,285,990,347.60 and 514,196,740.56

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Solution

The fourth proportional to 931,857,558.96, 1,285,990,347.60 and 514,196,740.56 is: 709,606,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,857,558.96 : 1,285,990,347.60 = 514,196,740.56 : x
  2. Step 2: Convert to fraction form
    931,857,558.96/1,285,990,347.60 = 514,196,740.56/x
  3. Step 3: Cross multiply
    931,857,558.96x = 1,285,990,347.60 × 514,196,740.56
  4. Step 4: Simplify right side
    931,857,558.96x = 661,252,045,127,541,376
  5. Step 5: Solve for x
    x = 661,252,045,127,541,376/931,857,558.96
  6. Step 6: Final answer
    x = 709,606,354.29

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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.