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Finding the Fourth Proportional to 1,265,698.78, 1,746,706.07 and 692,738.80

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Solution

The fourth proportional to 1,265,698.78, 1,746,706.07 and 692,738.80 is: 956,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,698.78 : 1,746,706.07 = 692,738.80 : x
  2. Step 2: Convert to fraction form
    1,265,698.78/1,746,706.07 = 692,738.80/x
  3. Step 3: Cross multiply
    1,265,698.78x = 1,746,706.07 × 692,738.80
  4. Step 4: Simplify right side
    1,265,698.78x = 1,210,011,064,249.60
  5. Step 5: Solve for x
    x = 1,210,011,064,249.60/1,265,698.78
  6. Step 6: Final answer
    x = 956,002.40

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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.