Home / 838,772.70-1,258,159.05-418,868.70

Finding the Fourth Proportional to 838,772.70, 1,258,159.05 and 418,868.70

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Solution

The fourth proportional to 838,772.70, 1,258,159.05 and 418,868.70 is: 628,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,772.70 : 1,258,159.05 = 418,868.70 : x
  2. Step 2: Convert to fraction form
    838,772.70/1,258,159.05 = 418,868.70/x
  3. Step 3: Cross multiply
    838,772.70x = 1,258,159.05 × 418,868.70
  4. Step 4: Simplify right side
    838,772.70x = 527,003,445,666.74
  5. Step 5: Solve for x
    x = 527,003,445,666.74/838,772.70
  6. Step 6: Final answer
    x = 628,303.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.