Home / 890,668.76-1,229,254.20-564,011.58

Finding the Fourth Proportional to 890,668.76, 1,229,254.20 and 564,011.58

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Solution

The fourth proportional to 890,668.76, 1,229,254.20 and 564,011.58 is: 778,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,668.76 : 1,229,254.20 = 564,011.58 : x
  2. Step 2: Convert to fraction form
    890,668.76/1,229,254.20 = 564,011.58/x
  3. Step 3: Cross multiply
    890,668.76x = 1,229,254.20 × 564,011.58
  4. Step 4: Simplify right side
    890,668.76x = 693,313,603,563.64
  5. Step 5: Solve for x
    x = 693,313,603,563.64/890,668.76
  6. Step 6: Final answer
    x = 778,419.13

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Double scale
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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.