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Finding the Fourth Proportional to 707,239.55, 976,178.30 and 435,535.25

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Solution

The fourth proportional to 707,239.55, 976,178.30 and 435,535.25 is: 601,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,239.55 : 976,178.30 = 435,535.25 : x
  2. Step 2: Convert to fraction form
    707,239.55/976,178.30 = 435,535.25/x
  3. Step 3: Cross multiply
    707,239.55x = 976,178.30 × 435,535.25
  4. Step 4: Simplify right side
    707,239.55x = 425,160,052,876.51
  5. Step 5: Solve for x
    x = 425,160,052,876.51/707,239.55
  6. Step 6: Final answer
    x = 601,154.24

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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.