Home / 710,049,619.20-1,065,074,428.80-465,161,606.40

Finding the Fourth Proportional to 710,049,619.20, 1,065,074,428.80 and 465,161,606.40

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Solution

The fourth proportional to 710,049,619.20, 1,065,074,428.80 and 465,161,606.40 is: 697,742,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,049,619.20 : 1,065,074,428.80 = 465,161,606.40 : x
  2. Step 2: Convert to fraction form
    710,049,619.20/1,065,074,428.80 = 465,161,606.40/x
  3. Step 3: Cross multiply
    710,049,619.20x = 1,065,074,428.80 × 465,161,606.40
  4. Step 4: Simplify right side
    710,049,619.20x = 495,431,732,236,170,368
  5. Step 5: Solve for x
    x = 495,431,732,236,170,368/710,049,619.20
  6. Step 6: Final answer
    x = 697,742,409.60

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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.