Home / 838,278.09-1,257,417.54-277,312.59

Finding the Fourth Proportional to 838,278.09, 1,257,417.54 and 277,312.59

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Solution

The fourth proportional to 838,278.09, 1,257,417.54 and 277,312.59 is: 415,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,278.09 : 1,257,417.54 = 277,312.59 : x
  2. Step 2: Convert to fraction form
    838,278.09/1,257,417.54 = 277,312.59/x
  3. Step 3: Cross multiply
    838,278.09x = 1,257,417.54 × 277,312.59
  4. Step 4: Simplify right side
    838,278.09x = 348,697,714,728.83
  5. Step 5: Solve for x
    x = 348,697,714,728.83/838,278.09
  6. Step 6: Final answer
    x = 415,969.02

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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.