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Finding the Fourth Proportional to 562,187.40, 843,281.10 and 525,323.40

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Solution

The fourth proportional to 562,187.40, 843,281.10 and 525,323.40 is: 787,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,187.40 : 843,281.10 = 525,323.40 : x
  2. Step 2: Convert to fraction form
    562,187.40/843,281.10 = 525,323.40/x
  3. Step 3: Cross multiply
    562,187.40x = 843,281.10 × 525,323.40
  4. Step 4: Simplify right side
    562,187.40x = 442,995,294,607.74
  5. Step 5: Solve for x
    x = 442,995,294,607.74/562,187.40
  6. Step 6: Final answer
    x = 787,985.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.