Home / 674,935.84-931,646.02-388,570.06

Finding the Fourth Proportional to 674,935.84, 931,646.02 and 388,570.06

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Solution

The fourth proportional to 674,935.84, 931,646.02 and 388,570.06 is: 536,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,935.84 : 931,646.02 = 388,570.06 : x
  2. Step 2: Convert to fraction form
    674,935.84/931,646.02 = 388,570.06/x
  3. Step 3: Cross multiply
    674,935.84x = 931,646.02 × 388,570.06
  4. Step 4: Simplify right side
    674,935.84x = 362,009,749,890.16
  5. Step 5: Solve for x
    x = 362,009,749,890.16/674,935.84
  6. Step 6: Final answer
    x = 536,361.72

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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.