Home / 711,386.58-981,744.93-409,677.78

Finding the Fourth Proportional to 711,386.58, 981,744.93 and 409,677.78

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Solution

The fourth proportional to 711,386.58, 981,744.93 and 409,677.78 is: 565,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,386.58 : 981,744.93 = 409,677.78 : x
  2. Step 2: Convert to fraction form
    711,386.58/981,744.93 = 409,677.78/x
  3. Step 3: Cross multiply
    711,386.58x = 981,744.93 × 409,677.78
  4. Step 4: Simplify right side
    711,386.58x = 402,199,083,448.66
  5. Step 5: Solve for x
    x = 402,199,083,448.66/711,386.58
  6. Step 6: Final answer
    x = 565,373.45

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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.