Home / 905,415.02-1,249,472.38-497,543.14

Finding the Fourth Proportional to 905,415.02, 1,249,472.38 and 497,543.14

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Solution

The fourth proportional to 905,415.02, 1,249,472.38 and 497,543.14 is: 686,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,415.02 : 1,249,472.38 = 497,543.14 : x
  2. Step 2: Convert to fraction form
    905,415.02/1,249,472.38 = 497,543.14/x
  3. Step 3: Cross multiply
    905,415.02x = 1,249,472.38 × 497,543.14
  4. Step 4: Simplify right side
    905,415.02x = 621,666,411,288.47
  5. Step 5: Solve for x
    x = 621,666,411,288.47/905,415.02
  6. Step 6: Final answer
    x = 686,609.34

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Double scale
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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.