Home / 907,635,295.84-1,252,503,640.10-505,728,278.76

Finding the Fourth Proportional to 907,635,295.84, 1,252,503,640.10 and 505,728,278.76

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Solution

The fourth proportional to 907,635,295.84, 1,252,503,640.10 and 505,728,278.76 is: 697,886,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,635,295.84 : 1,252,503,640.10 = 505,728,278.76 : x
  2. Step 2: Convert to fraction form
    907,635,295.84/1,252,503,640.10 = 505,728,278.76/x
  3. Step 3: Cross multiply
    907,635,295.84x = 1,252,503,640.10 × 505,728,278.76
  4. Step 4: Simplify right side
    907,635,295.84x = 633,426,510,054,368,768
  5. Step 5: Solve for x
    x = 633,426,510,054,368,768/907,635,295.84
  6. Step 6: Final answer
    x = 697,886,599.34

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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.