Home / 572,583.40-858,875.10-520,095.40

Finding the Fourth Proportional to 572,583.40, 858,875.10 and 520,095.40

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Solution

The fourth proportional to 572,583.40, 858,875.10 and 520,095.40 is: 780,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,583.40 : 858,875.10 = 520,095.40 : x
  2. Step 2: Convert to fraction form
    572,583.40/858,875.10 = 520,095.40/x
  3. Step 3: Cross multiply
    572,583.40x = 858,875.10 × 520,095.40
  4. Step 4: Simplify right side
    572,583.40x = 446,696,988,684.54
  5. Step 5: Solve for x
    x = 446,696,988,684.54/572,583.40
  6. Step 6: Final answer
    x = 780,143.10

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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.