Home / 528,666.06-729,559.90-286,948.68

Finding the Fourth Proportional to 528,666.06, 729,559.90 and 286,948.68

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Solution

The fourth proportional to 528,666.06, 729,559.90 and 286,948.68 is: 395,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,666.06 : 729,559.90 = 286,948.68 : x
  2. Step 2: Convert to fraction form
    528,666.06/729,559.90 = 286,948.68/x
  3. Step 3: Cross multiply
    528,666.06x = 729,559.90 × 286,948.68
  4. Step 4: Simplify right side
    528,666.06x = 209,346,250,285.93
  5. Step 5: Solve for x
    x = 209,346,250,285.93/528,666.06
  6. Step 6: Final answer
    x = 395,989.58

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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.