Home / 528,545.07-729,394.11-286,827.57

Finding the Fourth Proportional to 528,545.07, 729,394.11 and 286,827.57

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Solution

The fourth proportional to 528,545.07, 729,394.11 and 286,827.57 is: 395,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,545.07 : 729,394.11 = 286,827.57 : x
  2. Step 2: Convert to fraction form
    528,545.07/729,394.11 = 286,827.57/x
  3. Step 3: Cross multiply
    528,545.07x = 729,394.11 × 286,827.57
  4. Step 4: Simplify right side
    528,545.07x = 209,210,340,143.61
  5. Step 5: Solve for x
    x = 209,210,340,143.61/528,545.07
  6. Step 6: Final answer
    x = 395,823.08

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Similar ratio
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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.