Home / 936,127.71-1,291,852.35-506,406.78

Finding the Fourth Proportional to 936,127.71, 1,291,852.35 and 506,406.78

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Solution

The fourth proportional to 936,127.71, 1,291,852.35 and 506,406.78 is: 698,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,127.71 : 1,291,852.35 = 506,406.78 : x
  2. Step 2: Convert to fraction form
    936,127.71/1,291,852.35 = 506,406.78/x
  3. Step 3: Cross multiply
    936,127.71x = 1,291,852.35 × 506,406.78
  4. Step 4: Simplify right side
    936,127.71x = 654,202,788,798.93
  5. Step 5: Solve for x
    x = 654,202,788,798.93/936,127.71
  6. Step 6: Final answer
    x = 698,839.25

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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.