Home / 897,316.88-1,238,312.06-489,418.76

Finding the Fourth Proportional to 897,316.88, 1,238,312.06 and 489,418.76

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Solution

The fourth proportional to 897,316.88, 1,238,312.06 and 489,418.76 is: 675,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,316.88 : 1,238,312.06 = 489,418.76 : x
  2. Step 2: Convert to fraction form
    897,316.88/1,238,312.06 = 489,418.76/x
  3. Step 3: Cross multiply
    897,316.88x = 1,238,312.06 × 489,418.76
  4. Step 4: Simplify right side
    897,316.88x = 606,053,152,898.25
  5. Step 5: Solve for x
    x = 606,053,152,898.25/897,316.88
  6. Step 6: Final answer
    x = 675,405.94

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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.