Home / 992,678.72-1,370,140-563,210.24

Finding the Fourth Proportional to 992,678.72, 1,370,140 and 563,210.24

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Solution

The fourth proportional to 992,678.72, 1,370,140 and 563,210.24 is: 777,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,678.72 : 1,370,140 = 563,210.24 : x
  2. Step 2: Convert to fraction form
    992,678.72/1,370,140 = 563,210.24/x
  3. Step 3: Cross multiply
    992,678.72x = 1,370,140 × 563,210.24
  4. Step 4: Simplify right side
    992,678.72x = 771,676,878,233.60
  5. Step 5: Solve for x
    x = 771,676,878,233.60/992,678.72
  6. Step 6: Final answer
    x = 777,368.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.