Home / 719,390,651.40-992,653,433.88-401,811,769.56

Finding the Fourth Proportional to 719,390,651.40, 992,653,433.88 and 401,811,769.56

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Solution

The fourth proportional to 719,390,651.40, 992,653,433.88 and 401,811,769.56 is: 554,441,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,390,651.40 : 992,653,433.88 = 401,811,769.56 : x
  2. Step 2: Convert to fraction form
    719,390,651.40/992,653,433.88 = 401,811,769.56/x
  3. Step 3: Cross multiply
    719,390,651.40x = 992,653,433.88 × 401,811,769.56
  4. Step 4: Simplify right side
    719,390,651.40x = 398,859,832,827,133,248
  5. Step 5: Solve for x
    x = 398,859,832,827,133,248/719,390,651.40
  6. Step 6: Final answer
    x = 554,441,223.35

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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.