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Finding the Fourth Proportional to 616,501.40, 924,752.10 and 492,085.40

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Solution

The fourth proportional to 616,501.40, 924,752.10 and 492,085.40 is: 738,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,501.40 : 924,752.10 = 492,085.40 : x
  2. Step 2: Convert to fraction form
    616,501.40/924,752.10 = 492,085.40/x
  3. Step 3: Cross multiply
    616,501.40x = 924,752.10 × 492,085.40
  4. Step 4: Simplify right side
    616,501.40x = 455,057,007,029.34
  5. Step 5: Solve for x
    x = 455,057,007,029.34/616,501.40
  6. Step 6: Final answer
    x = 738,128.10

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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.