Home / 905,614.02-1,249,666.02-497,711.40

Finding the Fourth Proportional to 905,614.02, 1,249,666.02 and 497,711.40

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Solution

The fourth proportional to 905,614.02, 1,249,666.02 and 497,711.40 is: 686,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,614.02 : 1,249,666.02 = 497,711.40 : x
  2. Step 2: Convert to fraction form
    905,614.02/1,249,666.02 = 497,711.40/x
  3. Step 3: Cross multiply
    905,614.02x = 1,249,666.02 × 497,711.40
  4. Step 4: Simplify right side
    905,614.02x = 621,973,024,346.63
  5. Step 5: Solve for x
    x = 621,973,024,346.63/905,614.02
  6. Step 6: Final answer
    x = 686,797.04

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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.