Home / 630,080,386.40-945,120,579.60-543,916,085.60

Finding the Fourth Proportional to 630,080,386.40, 945,120,579.60 and 543,916,085.60

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Solution

The fourth proportional to 630,080,386.40, 945,120,579.60 and 543,916,085.60 is: 815,874,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,080,386.40 : 945,120,579.60 = 543,916,085.60 : x
  2. Step 2: Convert to fraction form
    630,080,386.40/945,120,579.60 = 543,916,085.60/x
  3. Step 3: Cross multiply
    630,080,386.40x = 945,120,579.60 × 543,916,085.60
  4. Step 4: Simplify right side
    630,080,386.40x = 514,066,286,076,035,264
  5. Step 5: Solve for x
    x = 514,066,286,076,035,264/630,080,386.40
  6. Step 6: Final answer
    x = 815,874,128.40

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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.