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Finding the Fourth Proportional to 561,321.77, 774,404.15 and 346,088.16

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Solution

The fourth proportional to 561,321.77, 774,404.15 and 346,088.16 is: 477,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,321.77 : 774,404.15 = 346,088.16 : x
  2. Step 2: Convert to fraction form
    561,321.77/774,404.15 = 346,088.16/x
  3. Step 3: Cross multiply
    561,321.77x = 774,404.15 × 346,088.16
  4. Step 4: Simplify right side
    561,321.77x = 268,012,105,639.42
  5. Step 5: Solve for x
    x = 268,012,105,639.42/561,321.77
  6. Step 6: Final answer
    x = 477,466.09

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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.