Home / 923,691,818.50-1,274,684,554.65-500,294,947.12

Finding the Fourth Proportional to 923,691,818.50, 1,274,684,554.65 and 500,294,947.12

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Solution

The fourth proportional to 923,691,818.50, 1,274,684,554.65 and 500,294,947.12 is: 690,401,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,691,818.50 : 1,274,684,554.65 = 500,294,947.12 : x
  2. Step 2: Convert to fraction form
    923,691,818.50/1,274,684,554.65 = 500,294,947.12/x
  3. Step 3: Cross multiply
    923,691,818.50x = 1,274,684,554.65 × 500,294,947.12
  4. Step 4: Simplify right side
    923,691,818.50x = 637,718,241,863,302,528
  5. Step 5: Solve for x
    x = 637,718,241,863,302,528/923,691,818.50
  6. Step 6: Final answer
    x = 690,401,526.88

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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.