Home / 653,747.27-900,085.70-557,869.19

Finding the Fourth Proportional to 653,747.27, 900,085.70 and 557,869.19

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Solution

The fourth proportional to 653,747.27, 900,085.70 and 557,869.19 is: 768,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,747.27 : 900,085.70 = 557,869.19 : x
  2. Step 2: Convert to fraction form
    653,747.27/900,085.70 = 557,869.19/x
  3. Step 3: Cross multiply
    653,747.27x = 900,085.70 × 557,869.19
  4. Step 4: Simplify right side
    653,747.27x = 502,130,077,283.83
  5. Step 5: Solve for x
    x = 502,130,077,283.83/653,747.27
  6. Step 6: Final answer
    x = 768,079.81

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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.