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Finding the Fourth Proportional to 648,000.70, 972,001.05 and 585,792.70

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Solution

The fourth proportional to 648,000.70, 972,001.05 and 585,792.70 is: 878,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,000.70 : 972,001.05 = 585,792.70 : x
  2. Step 2: Convert to fraction form
    648,000.70/972,001.05 = 585,792.70/x
  3. Step 3: Cross multiply
    648,000.70x = 972,001.05 × 585,792.70
  4. Step 4: Simplify right side
    648,000.70x = 569,391,119,482.34
  5. Step 5: Solve for x
    x = 569,391,119,482.34/648,000.70
  6. Step 6: Final answer
    x = 878,689.05

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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.