Home / 714,918,903.51-986,562,923.63-393,044,527.01

Finding the Fourth Proportional to 714,918,903.51, 986,562,923.63 and 393,044,527.01

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Solution

The fourth proportional to 714,918,903.51, 986,562,923.63 and 393,044,527.01 is: 542,387,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,918,903.51 : 986,562,923.63 = 393,044,527.01 : x
  2. Step 2: Convert to fraction form
    714,918,903.51/986,562,923.63 = 393,044,527.01/x
  3. Step 3: Cross multiply
    714,918,903.51x = 986,562,923.63 × 393,044,527.01
  4. Step 4: Simplify right side
    714,918,903.51x = 387,763,157,683,756,096
  5. Step 5: Solve for x
    x = 387,763,157,683,756,096/714,918,903.51
  6. Step 6: Final answer
    x = 542,387,613.17

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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.