Home / 830,772.70-1,246,159.05-511,908.10

Finding the Fourth Proportional to 830,772.70, 1,246,159.05 and 511,908.10

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Solution

The fourth proportional to 830,772.70, 1,246,159.05 and 511,908.10 is: 767,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,772.70 : 1,246,159.05 = 511,908.10 : x
  2. Step 2: Convert to fraction form
    830,772.70/1,246,159.05 = 511,908.10/x
  3. Step 3: Cross multiply
    830,772.70x = 1,246,159.05 × 511,908.10
  4. Step 4: Simplify right side
    830,772.70x = 637,918,911,583.31
  5. Step 5: Solve for x
    x = 637,918,911,583.31/830,772.70
  6. Step 6: Final answer
    x = 767,862.15

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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.