Home / 712,827.50-983,459.76-406,683.95

Finding the Fourth Proportional to 712,827.50, 983,459.76 and 406,683.95

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Solution

The fourth proportional to 712,827.50, 983,459.76 and 406,683.95 is: 561,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,827.50 : 983,459.76 = 406,683.95 : x
  2. Step 2: Convert to fraction form
    712,827.50/983,459.76 = 406,683.95/x
  3. Step 3: Cross multiply
    712,827.50x = 983,459.76 × 406,683.95
  4. Step 4: Simplify right side
    712,827.50x = 399,957,299,862.85
  5. Step 5: Solve for x
    x = 399,957,299,862.85/712,827.50
  6. Step 6: Final answer
    x = 561,085.68

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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.